User:BDD/C. elegans (disambiguation)

C. elegans typically refers to the model round worm Caenorhabditis elegans.

C. elegans may also refer to:

Animals

 * Consobrinomia elegans, a species from the Mediterranean
 * Clathria elegans, a species (Microcionidae) found in the United States part of the North Atlantic Ocean
 * Clathrissa elegans, a synonym for Tedania elegans, a species (Tedaniidae) found in Australia
 * Crella elegans (syn. Cribella elegans or Cribrella elegans), a marine species (Crellidae) found in the Adriatic
 * Callyspongia elegans (syn. Cladochalina elegans), a species found in Indonesia
 * Chalinissa elegans, a synonym for Callyspongia serpentina, a species found in Australia and New Zealand
 * Chalinopsilla elegans, a synonym for Dactylia elegans, a species found in Western Australia
 * Chalinodendron elegans , a synonym for Haliclona elegans, a species found in South East Australia
 * Carteriospongia elegans, a synonym for Carteriospongia foliascens, a species (Thorectidae)
 * Caulospongia elegans, a species (Suberitidae) found in Australia
 * Craniella elegans, a marine species (Tetillidae) found in South India and Sri Lanka
 * †Cribrospongia elegans, an extinct species (Cribrospongiidae) from the Jurassic of Germany
 * Caulophacus elegans, a species (Rossellidae, Lanuginellinae) found in Central Kuroshio Current, near Japan
 * Corbitella elegans, a species (Euplectellidae) found in the Banda Sea in the Maluku Islands of Indonesia
 * †Cardiaphyllum elegans, an extinct species from the Upper Carboniferous of China
 * †Calamophylliopsis elegans, a species (Dermosmiliidae) from the Cretaceous of China
 * †Chorisastrea elegans, an extinct species (Calamophylliidae) found in Switzerland
 * †Codonosmilia elegans, a extinct species (Rhipidogyridae) from the Jurassic of Switzerland
 * Coeloria elegans, a species (incertae sedis)
 * †Colpophyllia elegans, an extinct species (Mussidae)
 * †Comophyllia elegans, an extinct species (Latomeandridae) from the Jurassic of France
 * †Conosmilia elegans, an extinct species (Flabellidae) from the Tertiary of South Australia
 * †Cyathophora elegans, a synonym for Holocystis elegans, a species (Cyathophoridae) from the Cretaceous of Mexico, Spain and the United Kingdom
 * Cycloseris elegans, a mushroom coral (Fungiidae) found on the west coast of America
 * †Carinthiaphyllum elegans, an extinct species (Geyerophyllidae) from the Carboniferous of China
 * †Caliapora elegans an extinct species (†Favositidae) from the Devonian of the Urals
 * †Catenipora elegans, an extinct species (†Halysitidae) from the Silurian of Estonia
 * †Coenites elegans, an extinct species (†Coenitidae) from the Devonian of Altai
 * Callogorgia elegans (syn. Callicella elegans), a species (Primnoidae) found in the West North Pacific
 * Chrysogorgia elegans, a species (Chrysogorgiidae) found in the Gulf of Mexico, the Mediterranean Sea and the North Atlantic Ocean
 * Cyathopodium elegans, a species (Clavulariidae) found in the western part of the Atlantic Ocean
 * Cavernularia elegans, a species (Veretillidae) from the North Atlantic Ocean
 * Ceratomyxa elegans, a species (Ceratomyxidae) found in the Mediterranean and the Argentinian Seas where it is a parasite of toadfishes
 * Calliaster elegans, a species
 * †Comptonia elegans, an extinct species from the Cretaceous of France
 * †Chariaster elegans, an extinct species from the Cretaceous of Egypt
 * †Calceolispongia elegans, an extinct species (Calceolispongiidae) that lived along the shores of what corresponds to Timor and Western Australia today
 * †Cicerocrinus elegans, an extinct species (Pisocrinidae) known from the Silurian of the United Kingdom
 * Clarkometra elegans, a feather star (Colobometridae) found from South West Mindanao in the Philippines to the Bonin Islands, Japan
 * †Coelopleurus elegans, a species (Arbaciidae) from the Pleistocene of Japan
 * †Catopygus elegans, a synonym for Studeria elegans, an extinct species (Neolampadidae)
 * †Cidaris elegans Münster, 1826 (syn. †Cidarites elegans), a fossil species (Cidaridae) from the Jurassic of France
 * Cidaris elegans (A. Agassiz, 1879), a synonym for Histocidaris elegans, an extant species (Histocidaridae)
 * †Cambraster elegans, an extinct species (family unknown) from the Cambrian
 * †Chiridota elegans (syn. †Chirodota elegans), a species (Chiridotidae) from the Pliocene of Europe
 * Clavelina elegans, a species (Clavelinidae) found in Japan
 * Chorizocarpa elegans, a synonym for Botryllus elegans, a species (Styelidae) found in Mozambique and South Africa
 * Culeolus elegans, a species (Pyuridae) found in New Caledonia
 * †Curtognathus elegans, an extinct species (Distacodontidae) from the Ordovician of Siberia
 * †Cephalaspis elegans, a synonym for †Zychaspis elegans, an extinct species (†Scolenaspididae) from the Devonian of Ukraine
 * †Chomatodus elegans, a prehistoric species
 * Carcharias elegans, a synonym for Carcharhinus melanopterus, the blacktip reef shark, a requiem shark (Carcharhinidae) inhabiting the tropical coral reefs of the Indian and Pacific Oceans
 * †Cladodus elegans, an extinct species from the Carboniferous period
 * †Cladoselache elegans, an extinct shark from the Devonian period
 * †Ctenacanthus elegans, an extinct species (Ctenacanthidae) from the Carboniferous period
 * †Cosmacanthus elegans, a synonym for †Nemacanthus elegans, an extinct species (†Paleospinacidae) from the Triassic of Idaho, United States
 * Callionymus elegans, a synonym for Callionymus lyra, the common dragonet, a species (Callionymidae) widespread in the Eastern Atlantic
 * Clinus elegans, a synonym for Calliclinus geniguttatus, a marine species (Labrisomidae) native to the Pacific coast of Chile and the Atlantic coast of Argentina
 * Coryphaena elegans, a synonym for Luvaris imperialis, the louvar, a marine species (Luvaridae) found in surface waters of temperate and tropical oceans throughout the world
 * Cybiosarda elegans, a marine scombrid (Scombridae) found in coastal and oceanic waters of northern Australia and southern New Guinea
 * Crenicara elegans, a synonym for Crenicara punctulatum, the checkerboard cichlid, a species (Geophaginae) native to creeks and rivers in the Amazon and Essequibo basins in South America
 * Crenicichla elegans, a synonym for Crenicichla reticulata, a species (Cichlinae) native to South America
 * Cyprinodon elegans, the Comanche Springs pupfish, a species found in the United States
 * Cynodonichthys elegans, a species found in Colombia
 * Cynolebias elegans, a synonym for Nematolebias whitei, the Rio pearlfish, a species native to South America
 * Cobitis elegans, a synonym for Triplophysa stolickai, the Tibetan stone loach, a species found in southern and central Asia
 * Corydoras elegans (syn. Corydorus elegans), the elegant corydoras or elegant catfish, a freshwater armored catfish (Callichthyidae) found in the Upper Amazon River basin
 * Crossocheilus elegans, a cyprinid (Cyprinidae) found in northern Borneo, Indonesia
 * Curimata elegans or Curimatus elegans, synonyms for Steindachnerina elegans, a species found in rivers in Bahia and Minas Gerais, Brazil
 * Curimatus elegans paraguayensis, a synonym for Curimatella dorsalis, a species from the Orinoco, Amazon, Tocantins and Paraguay-lower Paraná River basins
 * Centridermichthys elegans, a synonym for Bero elegans, a sculpin (Cottidae) native to the northwestern Pacific Ocean
 * Coregonus elegans, a synonym for Coregonus pollan, the pollan, a freshwater whitefish (salmonidae) known only from five Irish lakes
 * †Ceratodus elegans, an extinct lungfish (Ceratodontiformes, Ptychoceratodontidae) from the Triassic of Germany
 * †Coelacanthus elegans, a synonym for Rhabdoderma elegans, an extinct coelacanth fish (Rhabdodermatidae) that lived in the Carboniferous
 * Cardioglossa elegans, a species (Arthroleptidae) found in Cameroon, Equatorial Guinea and Gabon
 * Cornufer elegans, a species (Ceratobatrachidae) endemic to Papua New Guinea
 * †Chlorostilbon elegans, Gould's emerald, a presumed extinct hummingbird (Trochilidae) likely from Jamaica or the Bahamas
 * Charadrius elegans, a synonym for Charadrius alexandrinus, the Kentish plover, a cosmopolitan species (Charadriidae)
 * Callipepla elegans, a synonym for Callipepla douglasii, the elegant quail, a species (Odontophoridae) endemic to Pacific-slope thorn forest of north-western Mexico
 * Coturnicops elegans, a synonym for Sarothrura elegans, the buff-spotted flufftail, a species (Sarothruridae) found in Africa
 * Calocitta elegans, a synonym for Calocitta colliei, the black-throated magpie-jay, a species (Corvidae) found in northwestern Mexico
 * Celeus elegans, the chestnut woodpecker, a species (Picidae) found in South America
 * Calodromas elegans or Calopezus elegans, synonyms for Eudromia elegans, the elegant crested tinamou or martineta tinamou, a species (Tinamidae) found in southern Chile and Argentina
 * Calamaria elegans, a synonym for Calamaria modesta, a species (Calamariinae) found in Java
 * Coronella elegans Günther, 1858, a synonym for Taeniophallus occipitalis, a species (Dipsadinae) found in South America
 * Coronella elegans Jan, 1863, a synonym for Meizodon regularis, the Eastern crowned smooth snake, a species (Colubrinae) found in Africa
 * Coluber elegans, a synonym for Psammophis elegans, the elegant sand racer, a species (Psammophiinae) found in tropical Africa
 * Craspedocephalus elegans, a synonym for Trimeresurus elegans, the elegant pitviper, a species (Crotalinae) endemic to Japan
 * Cursoria elegans or Cusoria elegans, synonyms for Eryx elegans, a species (Erycinae) found in western Central Asia
 * Coleonyx elegans, the Yucatán banded gecko, an eyelid gecko (Eublepharinae) found in Mexico, Guatemala and Belize
 * Cyrtopodion elegans, a synonym for Cyrtopodion elongatum, the Yangihissar gecko, a species (Gekkoninae) found in northwest China and Mongolia
 * Chersine elegans, a synonym for Geochelone elegans, the Indian star tortoise, a species (Testudinidae) found in dry areas and scrub forest in India and Sri Lanka
 * Chrysemys elegans, a synonym for Trachemys scripta elegans, the red-eared slider, a pond turtle (Emydidae)
 * Cyclanorbis elegans, the Nubian flapshell turtle, a softshell (Trionychidae) found in Africa
 * †Chatterjeea elegans, a synonym for †Shuvosaurus inexpectatus, an extinct species of beaked reptiles (†Shuvosauridae) from the Late Triassic of Texas
 * †Chirostenotes elegans, a synonym for Leptorhynchos elegans, an extinct species of oviraptorosaurian dinosaur (†Caenagnathidae) from the late Cretaceous of Alberta, Montana and South Dakota
 * †Cricosaurus elegans, an extinct marine crocodyliform (Metriorhynchidae) from the Late Jurassic to Early Cretaceous
 * †Ctenochasma elegans, an extinct species of pterosaurs (†Ctenochasmatidae) of the Late Jurassic of Germany and France
 * †Cynodictis elegans, an extinct species of bear dog (†Amphicyonidae) from the Eocene–Oligocene of Eurasia
 * †Caenotherium elegans or Cainotherium elegans, synonyms for Cainotherium laticurvatum, an extinct species of rabbit-sized herbivores (†Cainotheriidae) from the Eocene-Miocene of Europe
 * †Choilodon elegans, an extinct species (?Tragulidae, the chevrotains) found in phosphorites in Quercy, France
 * Chrysochloris elegans, a synonym for Chrysochloris asiatica, the Cape golden mole, a small insectivorous (Chrysochloridae) found in South Africa
 * †Cayluxotherium elegans, a synonym for †Neurogymnurus cayluxi, an extinct species of hedgehogs (Erinaceidae) from the Oligocene of France
 * †Camphotherium elegans or †Comphotherium elegans, synonyms for †Tetracus nanus, an extinct species of hedgehogs (Erinaceidae) from the Oligocene of Belgium, France and southern England
 * Capromys elegans, a synonym for Phloeomys cumingi, the Southern giant slender-tailed cloud rat, a species (Muridae) found only in the Philippines
 * Citellus elegans, a synonym for Urocitellus elegans, the Wyoming ground squirrel, a species (Sciuridae) endemic to the Northwestern United States
 * †Callograptus elegans, an extinct species (†Dendrograptidae) from the Quebec Group
 * Convoluta elegans, a species (Convolutidae) found in the Black Sea
 * Chronogaster elegans, a species (Leptolaimidae) found in fresh water in the United States
 * Caenorhabditis elegans, a species (Rhabditidae) extensively used as a model in developmental biology
 * Craspedonema elegans, a parasitic species (Bunonematidae) found in Brazil
 * Cucullanus elegans, an endoparasite (Cucullanidae) of the European perch
 * Cloacina elegans, a parasite of marsupials in Australia
 * Cyclostrongylus elegans, an oesophageal parasite (Cloacininae) of macropodid marsupials in Australia
 * Cyartonema elegans, a free-living marine species (Cyartonematidae) found in Scotland
 * Crassolabium elegans, a species (Qudsianematidae) from the Northern Great Plains
 * Camallanus elegans, a synonym for Camallanus lacustris, a freshwater species (Camallanidae) parasitic of fish
 * Chilenchus elegans, a parasitic species (Tylenchidae) found in Chile
 * Calolampra elegans, a giant cockroach (Blaberidae) found in Queensland, Australia
 * Corydia elegans, a synonym for Eucorydia aenea, a species (Corydiidae) found in Asia
 * Centrocerum elegans, a species found in Brazil, Bolivia, Paraguay and Argentina
 * Cordylomera elegans, a species found in South Africa
 * Callichroma elegans, Cerambix elegans or Cerambyx elegans, synonyms for Mionochroma elegans, a species found in Guadeloupe, Grenada, Dominica and St. Lucia
 * Callichroma elegans Haldeman, 1847 nec Olivier, 1790, a synonym for Plinthocoelium suaveolens
 * Calliprason elegans, a species (Stenoderini) found in New Zealand
 * Championa elegans, a species (Heteropsini) found in Mexico
 * Clytus elegans, a synonym for Neoclytus scutellaris a species (Clytini) found in the United States
 * Coleoxestia elegans or Criodion elegans, synonyms for Poeciloxestia elegans a species (Cerambycini) found in Brazil
 * Cacia elegans, a species (Mesosini)
 * Callienispia elegans, a synonym for Egesina elegans, a species (Pteropliini)
 * Catharesthes elegans, a species (Acanthocinini)
 * Ceroplesis elegans, a species (Ceroplesini) found in Saudi Arabia and Yemen
 * Chariesthes elegans, a synonym for Chariesthes bella, a species (Tragocephalini) found in Africa
 * Cyriocrates elegans, a synonym for Anoplophora elegans, a species (Lamiini) found in South East Asia
 * Callidemum elegans, a species found in Australia
 * Calligrapha elegans or Chrysomela elegans, synonyms for Calligrapha californica, a species (Chrysomelini) found in the United States and Canada
 * Crosita elegans, a species with a Palaearctic distribution
 * Cyrtonus elegans (syn. Chrysomela elegans), a species found in Portugal
 * Callispa elegans, a species found in Southern Asia
 * Callistola elegans a species (Cryptonychini) found in the West Pacific
 * Coptocycla elegans, a species found in Brazil
 * Cneorane elegans, a species (Galerucini) found in Japan and Korea
 * Colobaspis elegans, a species (Megalopodinae) found in Taiwan
 * Chondria elegans, a species found in Malaysia
 * Corynomalus elegans, a species (Lycoperdininae) found in Ecuador
 * Cymbachus elegans, a species (Lycoperdininae) found in Laos
 * Cartodere elegans, a species found in Europe
 * Calosphaera elegans or Cryptarcha elegans, synonyms for Eucalosphaera elegans a species (Cryptarchinae) found in Perak, Malaysia
 * Callotillus elegans, a synonym for Neocallotillus elegans, a species (Tillinae) found in Texas, California and Arizona
 * Chariessa elegans, a species found in the United States
 * Carphurus elegans, a species (Malachiinae, Carphurini) found in Queensland, Australia
 * Clanoptilus elegans, a species found in Europe
 * Callizonus elegans, a synonym for Praepodes elegans, a species (not yet assigned to a subfamily) found in Cuba
 * Ceutorhynchus elegans, a species (Baridinae, Ceutorhynchini) with a palaearctic distribution
 * Coniatus elegans, a species (Hyperinae) found in Syria
 * Conotrachelus elegans, the pecan gall curculio, a species (Molytinae) found in North America
 * Cryptorhynchus elegans, a species (Cryptorhynchinae) found in North America
 * Centrinaspis elegans, a species found in Brazil
 * Cleopus elegans, a species (Cionini) found in Italy
 * Calandra elegans, a species
 * Curculio elegans, a synonym for Sphenophorus abbreviatus, a species (Rhynchophorini) found in Europe
 * Cyrtotrachelus elegans, a species (Rhynchophorini) found in the Philippines
 * Chaerodrys elegans, a synonym for Metadrosus bellus, a species (Polydrosini) found in Southern Europe
 * Chiloneus elegans, a species (Sciaphilini) found in Greece
 * Compsus elegans, a species (Eustylini)
 * Coptorhynchus elegans, a species (Celeuthetini) found in Indonesia
 * Cnesinus elegans a species (Bothrosternini) found in Mexico
 * Coptodryas elegans, a species (Xyleborini) found in Burma, India, Indonesia and the Pacific
 * Cosmoderes elegans, a species (Cryphalini) found in New Guinea
 * Catalabus elegans, a species found in India
 * Cerobates elegans, a species found in Africa
 * Cephalostenus elegans, a species (Tenebrioninae) found in Greece
 * Colposcelis elegans a species (Pimeliinae, Tentyriini) with a palaearctic distribution in Asia
 * Cryptochile elegans, a species (Pimeliinae, Cryptochilini) found in Kenya
 * Ceraspis elegans, a species (Melolonthinae, Macrodactylini) found in Brazil and Central America (Honduras)
 * Canthon elegans or Choeridium elegans, synonyms for Canthon quadriguttatus, a species (Scarabaeinae, Canthonini) found in Brazil, Colombia and Suriname
 * Calopotosia elegans, a synonym for Protaetia elegans, a species (Cetoniini) found in Taiwan
 * Cetonia elegans Leoni, 1910, a synonym for Cetonia aurata pisana, a subspecies (Cetoniini) of the rose chafer
 * Cetonia elegans Fabricius, 1781, a synonym for Heterorrhina elegans, a species (Goliathini) found in India and Sri Lanka
 * Chrysoliocola elegans
 * Coptomia elegans, a synonym for Pyrrhopoda elegans, a species (Stenotarsiini) found in Madagascar
 * Coryphocera elegans, a species found in Senegal
 * Cyclocephala elegans, a synonym for Cyclocephala melanocephala, a species found in North and Central America
 * Cladognathus elegans, a synonym for Digonophorus elegans, a species found in India
 * Cardiophorus elegans, a species found in Chile
 * Cardiorhinus elegans, a species found in Brazil
 * †Cardiosyne elegans, an extinct species from the Triassic of Argentina
 * Compsoctenus elegans, a species (Prosterninae) found in Chile
 * Conoderus elegans, a species (Agrypninae) with a Palaearctic distribution
 * Ctenicera elegans (syn. Corymbites elegans), a species (Prosterninae) found in Canada
 * Cordylocera elegans
 * Cautires elegans, a species (Lycinae)
 * Chalcogenia elegans
 * Chrysochroa elegans, the Japanese jewel beetle (tamamushi in Japanese), a species (Chrysochroinae) found in Japan
 * Clema elegans
 * Ctenelmis elegans, a species found near rivers in South Africa
 * Catalina elegans, a species (Aleocharinae) with an Afrotropical distribution
 * Cyrtotyphlus elegans, a species (Leptotyphlinae)
 * Cephalochetus elegans (syn. Calliderma elegans), a species (Paederini, Echiasterina) found in Sri Lanka
 * Cryptobium elegans, a synonym for Ochthephilum elegans, a species (Paederini, Cryptobiina) found in Australia
 * Centrophthalmus elegans, a species (Tyrini) with a palaearctic distribution
 * Chandleria elegans, a species (Metopiasini) found in Panama
 * Creniphilus elegans, a synonym for Paracymus elegans, a species (Hydrophilinae) found in the Southern California
 * Calosoma elegans (syn. Callisthenes elegans), a species (Carabini) found in Kazakhstan
 * Collyris elegans, (syn. Colliuris elegans Vanderl., 1829), a species (Collyridini) found in Java
 * Caledonomorpha elegans, a species found in New Guinea
 * Cephalota elegans (syn. Cicindela elegans Fourcroy & Geoffroy, 1785), a species (Cicindelini) found in Russia
 * Catascopus elegans, a species found in South East Asia and Australia
 * Colliuris elegans (Guerin-Meneville, 1855), a species (Odacanthini) found in Brazil
 * Cymindis elegans, a species found in the United States
 * Callistomimus elegans, a species found in South Africa
 * Chlaenius elegans
 * Carenum elegans, a species from Western Australia
 * Clivina elegans, a species found in Australia
 * Caelostomus elegans, a species (Pterostichinae)
 * Cimmerites elegans, a species (Trechinae)
 * Colpodes elegans, a species (Platyninae)
 * Craspedophorus elegans, a species (Panagaeinae)
 * Cypholoba elegans, a synonym for Cypholoba divisa, a species (Anthiinae)
 * †Coptoclavella elegans, an extinct species from the Cretaceous of Mongolia
 * Colymbetes elegans, a synonym for Copelatus posticatus, a species (Copelatinae)
 * Chelisoches elegans, a synonym for Euenkrates elegans, a species (Chelisochidae) found in Sumatra and Java
 * Calohilara elegans, a synonym for Hilara elegans, a species (Empididae) found in Myanmar
 * Cerdistus elegans, a species (Asilidae) found in Tunisia
 * Chrysotus elegans, a synonym for Chrysotus pallidipalpus, a long-legged fly (Dolichopodidae) found in Hawaii
 * Cytherea elegans, a bee fly (Bombyliidae) found in France
 * Chalcosyrphus elegans, a species (Xylotini) found in Myanmar
 * Chrysogaster elegans, a synonym for Orthonevra elegans, a species (Brachyopini) found in Europe
 * Chrysotoxum elegans, a species (Syrphini) found in southern mainland Europe
 * Chloropsina elegans (syn. Chromatopterum elegans), a species (Chloropinae) found in the Philippines
 * Conioscinella elegans, a species (Oscinellinae) found in Europe
 * Callomyia elegans, a flat-footed fly (Platypezidae) found in Europe
 * Cardiacephala elegans, a synonym for Plocoscelus podagricus, a species (Micropezidae) found in Brazil and Peru
 * Cecidocharella elegans, a fruit fly (Tephritidae) found in Brazil
 * Cestrotus elegans, a species (Lauxaniidae) found in Ethiopia and Morocco
 * Chamaemyia elegans, a species (Chamaemyiidae) present in Europe
 * Chelisia elegans, a synonym for Anthomyia obscuripennis, a species (Anthomyiidae) found in the United States
 * Coenosia elegans, a house fly (Muscidae) found in Alaska
 * Conops elegans, a thick-headed fly (Conopidae) found in Cyprus, France and Spain
 * Chyliza elegans, a species of rust flies (Psilidae) found in Taiwan
 * Cryptomeigenia elegans, a tachinid fly (Tachinidae) found in Mexico
 *  Cuterebra elegans, a synonym for Cuterebra rufiventris, a rodent bot fly (Oestridae, Cuterebrinae) found in Brazil and Peru
 * Coenura elegans (syn. Caenura elegans), a species found in Chile
 * Chrysopilus elegans, a species found from Costa Rica to Peru
 * Cyphomyia elegans, a synonym for Euparyphus elegans, a species (Stratiomyinae, Oxycerini) found in Mexico
 * Cecidomyia elegans, a gall midge (Cecidomyiidae) found in Germany
 * Corynoptera elegans, a dark-winged fungus gnat (Sciaridae) found in Argentina
 * Ctenophora elegans, a true crane-fly (Tipulidae) found in Europe
 * Chironomus elegans, a synonym for Eurycnemus crassipes, a species (Orthocladiinae) found in Europe
 * Cricotopus elegans, a species (Orthocladiinae) found in Europe
 * Culex elegans, a species (Culicinae), possibly a synonym for Aedes aegypti
 * Cardiastethus elegans, a species (Anthocoridae) with a neotropical distribution
 * Coranus elegans, an assassin bug (Reduviidae, Harpactorinae) found in Africa
 * Corythucha elegans, the willow lace bug, a lace bug (Tingidae) found on willows in North America
 * Capsodes elegans, a synonym for Capsodes gothicus, a species (Mirinae) found in Europe
 * †Closterocoris elegans, an extinct species (Mirinae) found in the Eocene Florissant Formation of Colorado
 * Compsocerocoris elegans, a species found in Central America
 * †Corixa elegans, an extinct species (Corixidae) from the Oligocene of Germany
 * Cephaloplatus elegans, a species (Carpocorini) found in the Northern Territory, Australia
 * Commius elegans (syn. Cimex elegans), a species (Diemeniini) found in Australia
 * Cyptocephala elegans, a species (Pentatomini) found in Illinois
 * Coptosoma elegans, a species (Platasdinae) found in Europe
 * Cercinthus elegans (syn. Coreus elegans), a species (Coreidae) found in the Canary Islands
 * Carvalhodrymus elegans, a species (Rhyparochromidae) found in Ghana and Cameroon
 * Cymus elegans, a species (Lygaeidae) found in Korea
 * Calyptoproctus elegans, a lanternfly (Fulgoridae) found in Surinam, Brazil, French Guiana and Honduras
 * Cromna elegans, a synonym for Siphanta acuta, the green planthopper or the torpedo bug, a species (Flatidae)
 * Callistrophia elegans , a synonym for Taurotettix elegans, a hopper (Cicadellidae, Deltocephalinae, Cicadulini) found in Asia
 * Callipterus elegans, a synonym for Tinocallis platani, a species (Aphididae, Calaphidinae) found in Europe and North America
 * Cacopsylla elegans, a species (Psyllidae) found in Japan
 * Colposcenia elegans, a species (Aphalaridae, Aphalarinae) with a palaearctic distribution distribution in North and East Africa and the Middle East
 * Ceropales elegans, a species (Ceropalinae) found in Texas
 * Cryptocheilus elegans, a species (Pepsinae) found in Europe
 * Camponotus elegans, a carpenter ant (Formicinae) found in South East Queensland and West Australia
 * Cardiocondyla elegans, a species (Myrmicinae) found in the Mediterranean region
 * Cerapachys elegans, a species (Dorylinae) found in Australia
 * Conomyrma elegans, a synonym for Dorymyrmex elegans, a species (Dolichoderinae) endemic to the United States and Mexico
 * Crematogaster elegans, a species (Myrmicinae) found on the Aru and Kai Islands, Indonesia
 * Centris elegans, a species (Apinae) found on Saint Vincent and Grenadines
 * Crocisa elegans, a synonym for Thyreus elegans, a species (Apinae) found in Eurasia and Africa
 * Caupolicana elegans a species found in Mexico and the United States
 * Colletes elegans, a ground-nesting species found in Israel
 * Cerceris elegans, a species found in Russia
 * Calaphidius elegans, a parasitoid species (Aphidiinae) found in Europe
 * Chelonus elegans, a species (Cheloninae)
 * Chrysopophthorus elegans, a synonym for Chrysopophthorus hungaricus, a parasitoid species (Euphorinae) found in North Italy and introduced in Great Britain
 * Coelinidea elegans (syn. Chaenon elegans or Coelinius elegans), a species of parasitoid wasps (Alysiinae) found in Europe
 * Callibracon elegans, a species (Braconini)
 * Campyloneurus elegans, a species (Braconini) found in Cameroon
 * Campodorus elegans, a parasitic wasp (Ctenopelmatinae, Mesoleiini) found in England
 * Campoplex elegans, a synonym for Dusona elegans, a parasitic wasp (Campopleginae, Limneriini) found in Tanzania
 * Cryptanuridimorpha elegans, a synonym for Polycyrtus vierecki, a species (Gelinae, Cryptini) found in Peru
 * Calliscelio elegans (syn. Caloteleia elegans), a parasitoid wasp (Platygastridae) found on the Hawaiian island of O ʻ ahu
 * Cerachalcis elegans or Cratocentrus elegans, synonyms for Cratocentrus ruficornis, a species (Chalcididae) found in Namibia, South Africa and Zimbabwe
 * Chaetospila elegans or Choetospila elegans, synonyms for Theocolax elegans, a parasitic wasp (Pteromalidae) of immature stages of stored grain pest insects
 * Cheiloneurus elegans (syn. Cleonymus elegans), a parasitic wasp (Encyrtidae)
 * Chrysolampus elegans, a species (Perilampidae) with a Nearctic distribution
 * Cosmocoma elegans, a synonym for Polynema howardii, a species of fairyflies or fairy wasps (Mymaridae) with a Nearctic distribution
 * Chrysis elegans, a species (Chrysidinae) found in Southern Europe
 * Cleptes elegans, a synonym for Cleptes semicyaneus, a species (Cleptinae) found in Europe
 * Catapaecilma elegans, the common tinsel, a species found in Asia
 * Clossiana elegans, a species (Heliconiinae)
 * Cyrestis elegans, a synonym for Cyrestis camillus elegans, a species (Cyrestinae) known from Madagascar
 * Colias elegans, a synonym for Colias phicomone, the mountain clouded yellow,, a species (Coliadinae) found in the Cantabrian Mountains, the Pyrenees, the Carpathian Mountains and the Alps
 * Callimormus elegans, a synonym for Callimormus radiola elegans, a subspecies of the radiant skipper (Hesperiinae) found in southern Mexico, Ecuador, Brazil, Colombia and Argentina
 * Chapra elegans, a species
 * Cobalopsis elegans, a species (Hesperiinae) found in Ecuador
 * Cacozelia elegans, a species found in Venezuela
 * Circobotys elegans, a species found in Taiwan
 * Crambus elegans, a synonym for Microcrambus elegans, the elegant grass-veneer moth, a species (Crambinae) found in North America
 * Cryptographis elegans, a species (Pyraustinae) found in Porto Rico
 * Cacogamia elegans, a synonym for Tisis elegans, a species (Lecithoceridae) found on Java
 * Coleophora elegans, a species (Coleophoridae) found in Africa
 * Casphalia elegans, a species found in Ghana
 * Compsopsectra elegans, a species found in the Philippines
 * Cyrtosia elegans, a synonym for Packardia elegans, the elegant tailed slug moth, a species (Limacodinae) found in Canada and the United States
 * Catalebeda elegans, a eggar (Lasiocampidae) found in Africa
 *  Callocossus elegans, a synonym for Eulophonotus elegans, a species (Zeuzerinae) found in Sierra Leone, Cameroon, the Republic of Congo, Equatorial Guinea and Tanzania
 * Costria elegans, a species (Cossinae) found in South America
 * Cochylimorpha elegans, a species (Tortricinae) found in Iran
 * Callionima elegans, a synonym for Callionima grisescens, a species (Macroglossinae)
 * Chaerocampa elegans, a synonym for Hippotion echeclus, a species (Macroglossinae) found in South-East Asia
 * Callhistia elegans, a species (Boarmiini)
 * Cleora elegans, a synonym for Cleora leucophaea, a species found in Russia, Taiwan, Japan and South Korea
 * Colpocraspeda elegans, a species found in Papua New Guinae
 * Coenocalpe elegans, a species (Melanthiini) found in North America
 * Chersotis elegans, a species found in the mountains of Spain, Greece, Turkey, the Caucasus and Lebanon
 * Chytonix elegans, a species from Costa Rica
 * Conistra elegans, a species
 * Cosmodes elegans, the green-blotched moth, a species found in Australia and New Zealand
 * Correbia elegans a species (Euchromiina) found in Panama
 * Correbidia elegans, a species found in Mexico and Panama
 * Cosmosoma elegans, a species found in Brazil
 * Calliteara elegans, a synonym for Mpanjaka elegans, a species (Lymantrini) found in Madagascar
 * Cacyparis elegans, a species found in the Solomon Islands
 * Caliris elegans, a species found in Malaysia, Sumatra and Borneo
 * Calofulcinia elegans, a species found in New Guinea
 * Cordulecerus elegans, a species found in South America
 * Ceraeochrysa elegans, a species found in Costa Rica
 * Chrysopidia elegans, a species found in China and Nepal
 * Creoleon elegans, a species (Myrmeleontinae) found in Iran
 * †Campterophlebia elegans, an extinct species (†Campterophlebiidae) from the Jurassic of Germany
 * Chlorolestes elegans, a sylph (Synlestidae) found in Botswana, Malawi, Mozambique, South Africa and Zimbabwe
 * Calopteryx elegans, a synonym for Calopteryx angustipennis, the Appalachian jewelwing, a species (Calopterygidae) endemic to the United States
 * Cyphocerastis elegans, a species found in Africa
 * Calephorus elegans, a synonym for Calephorus compressicornis, French name: Criquet des dunes, a species found in France, Spain and Africa
 * Caryanda elegans (Bolívar, 1911), a synonym for Caryanda modesta, a species
 * Caryanda elegans Bolívar, 1918, a synonym for Caryanda neoelegans, a species
 * Catantops elegans or Cryptocatantops elegans, synonyms for Cryptocatantops debilis, a species (Catantopini) found in Namibia
 * Chitaura elegans, a species found in Indo-Malaysia
 * Clinocephalus elegans, a synonym for Dichromorpha elegans, the short-winged grasshopper
 * Chortoicetes elegans, a synonym for Chortoicetes terminifera, the Australian plague locust
 * Chlorizeina elegans, a synonym for Chlorizeina unicolor unicolor, a species found in Asia
 * Cataloipus elegans, a synonym for Cataloipus cognatus, a species found in Asia (India, Pakistan) and Africa (Mozambique, Zimbabwe, South Africa)
 * Chloromastax elegans , a synonym for Apteropeoedes elegans, a species (Pseudoschmidtiinae) found in Madagascar
 * Ceuthophilus elegans, a cave cricket (Rhaphidophoridae) found in the United States
 * Clonia elegans, a synonym for Clonia melanoptera, the giant black-winged clonia, a predatory katydid (Saginae) found in South Africa
 * Coptaspis elegans, a species (Conocephalinae)
 * Campanulotes elegans, a species parasite on the brush bronzewing, a bird in the pigeon family endemic to Australia
 * Compsocus elegans, a species (Compsocidae) found in Central America
 * Caecilius elegans, a synonym for Valenzuela elegans, a species of lizard barklice (Caeciliusidae) found in Haiti and the Hispaniola island
 * Colpostigma elegans,a synonym for Thyrsopsocus elegans, a species (Psocidae) found in Brazil
 * Cryptopygus elegans, a slender springtail (Entomobryidae) found in Argentina
 * †Congestheriella elegans, an extinct species of branchiopods (†Afrograptidae) from the Upper Jurassic
 * Calanus elegans, a synonym for Calanus finmarchicus, a species (Calanidae) part of zooplankton found in enormous amounts in the northern Atlantic Ocean
 * Calocalanus elegans, a marine species (Calocalanidae) found in the Canaries, Indian Ocean, Mediterranean Sea, Red Sea and sub-Antarctic waters
 * Centropages elegans, a marine species (Centropagidae)
 * Cyclopinodes elegans (syn. Cyclopina elegans or Cyclopinoides elegans), a marine species (Cyclopinidae) found in Scotland
 * Cyclops elegans, a freshwater species (Cyclopidae)
 * Caligus elegans or Caligulus elegans, synonyms for Caligus curtus, a sea louse (Caligidae) parasite of the Atlantic cod
 * Collocheres elegans, a species (Asterocheridae) found in the British Isles and West Norway infesting the black brittle star
 * Cancricepon elegans (syn. Cepon elegans), a species that parasitises the crab Pilumnus hirtellus from French and Great Britain's waters
 * Clianella elegans, a synonym for Dynoides elegans, a species found in California
 * Cymothoa elegans, a parasitic species found in the Java Sea
 * Chalarostylis elegans
 * Cyclaspis elegans
 * Calcinus elegans, the elegant hermit, a hermit crab (Diogenidae) found in the Indo-West Pacific region
 * †Callianassa elegans, an extinct species (Callianassidae) from Java
 * Choniognathus elegans, a crab (Majidae) found in South Africa
 * Cuapetes elegans, a shrimp (Palaemonidae)
 * Caprellinoides elegans
 * Conchoecia elegans, a synonym for Discoconchoecia elegans, a species (Halocypridae) found in Norway
 * †Cystomatochilina elegans, an extinct species (†Eurychilinidae) from the Silurian of central Bohemia, Czech Republic
 * Chlamydotheca elegans, a freshwater species (Cypridinae) found in Colombia
 * Cypricercus elegans, a freshwater species (Cypricercinae) found in Colombia
 * Caledothele elegans, a species found in New Caledonia
 * Cethegus elegans, a species found in Queensland
 * Cyriocosmus elegans, a species found in Venezuela, Trinidad and Tobago
 * Cheiracanthium elegans, a species found in Europe and Central Asia
 * Camillina elegans, a species found in the Caribbean, in Angola and in the Pacific Islands
 * Cesonia elegans, a species found on St. Vincent, Dominica
 * Chalcoscirtus elegans, a synonym for Rogmocrypta elegans a species (Hisponinae) found in New Caledonia and the Philippines
 * Cambridgea elegans, a species found in New Zealand
 * Callinethis elegans, a synonym for Opadometa fastigata, the pear-shaped leucauge, a species (Leucauginae) found in India to Philippines and Sulawesi
 * Chelifer elegans, a synonym for Mesochernes elegans, a species found in Venezuela
 * Chrysochernes elegans, a species found in New Mexico, United States
 * Cryptocheiridium elegans (syn. Cubanocheiridium elegans), a species (Cheiridiidae) found in Cuba
 * Cryptoditha elegans, a species (Tridenchthoniidae) found in Brazil
 * Calocheiridius elegans, a species (Olpiidae) found in India
 * Caelopygus elegans, a species found in Brazil
 * Carinostoma elegans, a species found in Hungary
 * Cereatta elegans, a species found in Cameroon
 * Centruroides elegans (syn; Centrurus elegans), a species (Buthidae) found in Mexico
 * †Compsoscorpius elegans, an extinct species from the Carboniferous of France and the United Kingdom
 * Colopalpus elegans, a synonym for Tenuipalpus elegans, a flat mite (Tenuipalpidae)
 * Cubanohydracarus elegans, a species (Hungarohydracaridae) found in Cuba
 * †Cyclagnostus elegans, a synonym for Acmarhachis elegans, an extinct species (†Agnostidae) from the Upper Cambrian of the USSR
 * †Costonia elegans, a species (†Trinucleidae) from the Ordovician of South Shropshire, England
 * †Coronocephalus elegans, an extinct species (†Encrinuridae) from the Silurian of China
 * †Conocephalites elegans, a synonym for †Bailiaspis elegans, an extinct species (†Conocoryphidae) from the Cambrian
 * Cormocephalus elegans, a species (Scolopendridae) found in North Africa
 * Caecum elegans, a synonym for Caecum trachea, a minute sea snail (Caecidae) found on rocky shores in European waters
 * Caloria elegans, a colorful sea slug (Facelinidae) found in European waters
 * Cancellaria elegans, a synonym for Merica elegans, the elegant nutmeg, a sea snail (Cancellariidae) found off the Philippines, Indonesia, Western Thailand and Queensland
 * Capulus elegans (syn. Capula elegans), a sea snail (Capulidae)
 * Chilina elegans, an air-breathing freshwater snail (Chilinidae) found in Chile
 * Choristes elegans var. tenera, a synonym for Choristella tenera, a sea snail (Lepetellidae) found in the Atlantic Ocean off New Jersey and North Carolina, United States
 * Chromodoris elegans, a synonym for Felimare picta, a sea slug (Chromodorididae) found throughout the Mediterranean Sea and the Eastern North Atlantic Ocean
 * Chrysallida elegans, a synonym for Liamorpha elegans, a sea snail (Pyramidellidae) found in the European waters
 * Cochlespira elegans, a sea snail (Cochlespiridae) found in the Caribbean Sea, the Gulf of Mexico and the Greater Antilles
 * Cochlostoma elegans, a land snail (Cochlostomatidae) found on the island of Pag in Croatia
 * Coenocharopa elegans, the elegant pinwheel snail, an air-breathing land snail (Charopidae) found in Queensland, Australia
 * Comitas elegans, a sea snail (Turridae)
 * Constantia elegans, a sea snail (Vanikoridae) found in Japan
 * Coronium elegans, a sea snail (Muricidae) found off the southeastern coast of Brazil
 * Cryptospira elegans, a sea snail (Marginellidae) found in Asia
 * Cyclostoma elegans, a synonym for Pomatias elegans, the round-mouthed snail, a land snail (Pomatiidae) common in Southern Europe
 * Cyclostrema elegans, a synonym for Adeorbis elegans, a sea snail (Tornidae)
 * Cyerce elegans, a sacoglossan sea slug (Caliphyllidae)
 * †Cypraedia elegans (syn. Cypraea elegans or Cypraeovula elegans), a sea snail (Pediculariidae) from the Eocene Europe
 * †Cheilotomona elegans, an extinct marine species (†Goniasmatidae) from the Triassic of Guizhou Province, China
 * †Craspedopoma elegans, an extinct species (Craspedopomatidae or Maizaniidae) from the Miocene of Germany
 * Cyclophorus elegans, a species (Cyclophoridae) found in China
 * Choristes elegans, a synonym for Amauropsis islandica, the Iceland moonsnail, a predatory sea snail (Naticidae)
 * †Chenopus elegans, a synonym for †Digitolabrum elegans, an extinct species (Aporrhaidae) from the Eocene of Egypt
 * Cantharus elegans, a true whelk (Buccinidae) found in Panama and Mexico
 * Columbella elegans, a synonym for Cotonopsis turrita, a sea snail (Columbellidae) found in West America
 * Conasprella elegans (syn. Conus elegans G. B. Sowerby III, 1895), a sea snail (Conidae) found from Somalia to Pakistan and off Western Australia
 * Conus elegans Schepman, 1913, a synonym for Conasprella comatosa, a sea snail (Conidae) found in the Pacific Ocean off Japan, the Philippines, Northwest Australia, New Caledonia and the Solomon Islands
 * Cerithiopsida elegans (syn. Cerithiopsis elegans), a sea snail (Newtoniellidae) found in the Kuril Islands
 * Cerithium elegans, a fossil sea snail (Cerithiidae)
 * Chelidonura elegans, a synonym for Chelidonura hirundinina, a sea slug (Aglajidae) found in the western Indo-Pacific and the Caribbean Sea
 * Columbinia elegans, an air-breathing land snail (Clausiliidae) found in Peru
 * †Calogoniodiscus elegans, an extinct species (Discidae) from the Tertiary
 * †Calliomphalus elegans, an extinct species (Calliotropidae) from the Cretaceous of Siberia
 * Calliostoma elegans, a synonym for Laetifautor elegans, a sea snail (Calliostomatidae) found in Japan
 * Chunula elegans, a synonym for Liotella elegans, a marine species (Skeneidae) found off the Northern Territory, Australia
 * †Cucullaea elegans, an extinct species of false ark shells (Cucullaeidae) from the North of Germany
 * †Crenella elegans, an extinct species (Mytilidae) from the Lutecian of France
 * †Crassostrea elegans (syn. †Cubitostrea elegans), an extinct species of true oysters (Ostreidae)
 * Crenatula elegans, a synonym for Crenatula picta, a marine species (Pteriidae) known from Madagascar and the Red Sea
 * †Caestocorbula elegans, an extinct saltwater clam from the Eocene of Belgium
 * †Corbulamella elegans (syn. Corbula elegans), an extinct clam from the Cretaceous of France
 * †Carbonicola elegans, an extinct species of saltwater clams (Anthracosiidae) that lived during the Carboniferous period of the United Kingdom
 * Chama elegans or Cardita elegans (Requien, 1848), synonyms for Centrocardita aculeata, a marine clam (Carditidae) found in the Mediterranean Sea and the European part of the North Atlantic Ocean
 * †Cyclocardia elegans (syn. Cardita elegans (Lamarck, 1806)), an extinct clam (Carditidae) from the Eocene of France
 * †Callista elegans, an extinct clam (Veneridae) from the Eocene of France
 * †Corbicula elegans, an extinct species of fresh and brackish water clams (Cyrenidae)
 * Cumingia elegans, a synonym for Thyellisca lamellosa, a marine clam (Semelidae)
 * †Cypricardinia elegans, an extinct species (Cardiniidae) from the Devonian of Maryland, United States
 * †Cavilucina elegans Fischer, 1887, an extinct species (Lucinidae) from the Lutetian of France
 * Cavilucina elegans (Deshayes, 1823) or Corbis elegans, a synonym for Fimbria soverbii, a species (Fimbriidae)
 * Cyclas elegans, a synonym for Sphaerium rhomboideum, the rhomboid fingernailclam, a freshwater species (Sphaeriidae) found in North America
 * Cetoconcha elegans (syn. Cribrosoconcha elegans), a saltwater clam (Poromyidae)
 * †Clavagella elegans, an extinct marine species (Clavagellidae) from the Cretaceous of Algeria
 * Cuspidaria elegans, a species (Cuspidariidae) found in Indonesia, Philippines and South China Sea
 * †Crendonites elegans, a species from the Upper Jurassic of Greenland
 * †Cleviceras elegans, an extinct species (Hildoceratidae) from the Early Jurassic of Europe, Siberia and Canada
 * †Crioceras elegans (probable synonym of †Crioceratites e.), an extinct species (Crioceratitidae) from the Cretaceous of Germany
 * †Crioceratites elegans, an extinct species (Crioceratitidae) from the Early Cretaceous
 * †Ceccaisculitoides elegans, a species (Paragoceratidae) from the Triassic of Nevada
 * †Ceratites elegans, a species (Ceratitidae) from the Triassic
 * †Cancelloceras elegans, an extinct species (Gastrioceratidae) from the Carboniferous of the Russian Federation, Navada (United States) and Uzbekistan
 * †Cymatoceras elegans, a species (Cymatoceratidae) from the Cretaceous of Switzerland and the United Kingdom
 * Chaetoderma elegans, a glisten worm (Chaetodermatidae) found in the Eastern Pacific
 * Costentalina elegans, a species (Entalinidae) found in Australia and the Indian Ocean
 * Craspedochiton elegans (syn. Craspedoplax elegans), a species (Acanthochitonidae)
 * †Conradella elegans or †Cyrtolites elegans, synonyms for †Phragmolites elegans, an extinct species (†Bucaniidae) from the Ordovician of Ohio
 * Carbasea elegans, a species (Flustridae) found in Australia
 * Catenicella elegans, a species (Catenicellidae) found in New Zealand
 * †Coscinopleura elegans, an extinct species (Coscinopleuridae) from the Paleocene of Denmark
 * Cupuladria elegans, a species (Cupuladriidae) from the Nansha Islands sea area
 * Cinctipora elegans, a species (Cinctiporidae) found in New Zealand
 * †Cyrtopora elegans, an extinct marine species from the Cretaceous of Europe
 * †Coscinium elegans, an extinct species (†Hexagonellidae) from the Paleozoic rocks of the western states and territories of the United States
 * †Cystodictya elegans, an extinct species (†Cystodictyonidae) from the Upper Carboniferous of Oklahoma, United States
 * †Clausotrypa elegans, an extinct species (Nikiforovellidae) from the Permian of Northeast China
 * †Callocladia elegans, an extinct species (†Crustoporidae) from the Devonian or Carboniferous of the Park City Formation in Idaho, Wyoming and Utah
 * †Craniops elegans, an extinct species (Craniopsidae) from the Ordovician of Estonia
 * †Cleiothyridina elegans, an extinct species (Athyrididae) from the Mississippian of Oklahoma
 * †Camarotoechia elegans, an extinct species (†Trigonirhynchiidae) from the Ordovician and Silurian of the Siberian platform
 * †Caucasorhynchia elegans, an extinct species (Allorhynchidae) known from the Triassic of Slovakia
 * †Cyclothyris elegans, an extinct species (†Cyclothyrididae) from the Mastrichian (Upper Cretaceous) of Belgium
 * †Cubanothyris elegans, an extinct species (†Angustothyrididae) from the Triassic of Russian Federation
 * †Chonetes elegans L.B. Smyth 1922, a synonym for †Chonetes speciosus, an extinct species (†Chonetidae) found in Ireland
 * †Crinistrophia elegans, a synonym for †Douvillinella (Crinistrophia) elegans, an extinct species (†Douvillinidae) from the Devonian of the Czech Republic and Germany
 * †Chonetes elegans L. G. de Koninck, 1847, a synonym for †Plicochonetes elegans, an extinct species (†Rugosochonetidae)
 * Cyanonemertes elegans, a marine species from Washington state, United States
 * Chrysopetalum elegans, a synonym for Bhawania goodei, a species (Chrysopetalidae) found in tropical waters around the world
 * Corephorus elegans, a synonym for Terebellides stroemii, a species (Terebellidae)
 * Cephalodella elegans, a species (Notommatidae) found on Mount Desert Island, in Hancock County, Maine, United States
 * Callidina elegans, the graceful callidina, a freshwater species (Adinetidae)
 * Calceostoma elegans, a synonym for Calceostoma calceostoma, a species (Calceostomatidae) parasite of the brown meagre (Sciaena umbra) in the Mediterranean
 * Cicerina elegans, a species (Cicerinidae) from the bay of Great Peter of the Sea of Japan
 * Choanocotyle elegans, a species (Choanocotylidae) that infects Australian freshwater turtles
 * Cylindrostoma elegans, a synonym for Pseudostomum klostermanni, a marine species (Pseudostomidae) found in the Black and Mediterranean Seas and in the European waters of the North Atlantic Ocean
 * Chaetonotus elegans, a species (Chaetonotidae) found in freshwaters of Europe
 * †Conochitina elegans, an extinct species (Conochitinidae) of the Silurian of the Baltic Sea

Fungi

 * Coniocarpon elegans, a synonym for Arthonia elegans, a lichen (Arthoniaceae)
 * Capnodium elegans, a synonym for Acrogenotheca elegans, a species (Capnodiaceae) found in Australia and New Zealand
 * Cladosporium elegans, a plant pathogen (Davidiellaceae) found on leaves of oranges in Italy
 * Chaetothyriothecium elegans, a species (Microthyriaceae) found in central Thailand
 * Campsotrichum elegans, a synonym for Periconia elegans, a species (incertae sedis)
 * Cheiromoniliophora elegans, a species (incertae sedis)
 * Chitonomyces elegans, a species
 * Corethromyces elegans, a species found on Rhexius inculptus (ant-loving beetles) in the United States
 * Cryptandromyces elegans, a species found in the Netherlands
 * Cucujomyces elegans, a species found in Argentina
 * Caloplaca elegans or Callopisma elegans, synonyms for Xanthoria elegans, a species of lychenized fungi (Teloschistaceae) with a circumpolar and alpine distribution
 * Cenomyce elegans, a species of lychenized fungi (Cladoniaceae)
 * Chiliospora elegans, a synonym for Myriospora elegans, a species of lichenized fungi (Acarosporaceae)
 * Coccocarpia elegans, a species of lichenized fungi (Coccocarpiaceae) found in Brazil
 * Cornularia elegans, a species (Dermateaceae) found in Italy
 * Candelabrella elegans, a synonym for Arthrobotrys elegans, a species (Orbiliaceae) found on dung
 * Canalisporium elegans, a lignicolous species (incertae sedis) found in Malaysia
 * Chaetosphaeria elegans, a species (Chaetosphaeriaceae)
 * Cytospora elegans, a species (Valsaceae)
 * Ceratopodium elegans, a species (Microascaceae)
 * Chalara elegans, a synonym for Thielaviopsis basicola, a plant pathogen (Ceratocystidaceae)
 * Cladobotryum elegans, a species
 * Cephalodiplosporium elegans, a species
 * Corallomycetella elegans (syn. Corallomyces elegans), a parasite of the rubber, tea and cacao trees
 * Cylindrocladiella elegans, a species
 * Catenospegazzinia elegans, a species found in Western Australia
 * Cephalosporium elegans, a synonym for Botryosporium pulchrum, a plant pathogen that causes leaf mold in geraniums
 * Ceratosporella elegans, a synonym for Ceratosporella bicornis, a species
 * Collemopsidium elegans, a lichenized fungus found in Europe and in North and South America
 * Corethropsis elegans, a species found in association with the sugarcane in Argentina
 * Corynesporina elegans, a species
 * Clitocybe elegans, a synonym for Armillaria heimii, a species (Physalacriaceae) that causes root rot on tea trees in East Africa
 * Collybia elegans a synonym for Marasmius elegans, the velvet parachute, a species (Marasmiaceae) found in eucalypt forests in Australia
 * Conocybe elegans, a species (Bolbitiaceae) found in Denmark
 * Cortinarius elegans, a species (Cortinariaceae)
 * Cyathus elegans, a synonym for Cyathus stercoreus, the dung-loving bird's nest, a species (Nidulariaceae)
 * Cystodermella elegans (syn. Cystoderma elegans), a species (Agaricaceae) found in Congo
 * Cyphella elegans (syn. Chaetocypha elegans), a species (Cyphellaceae), possibly an unavailable name
 * Coniophora elegans, a species (Coniophoraceae)
 * Cricunopus elegans, a synonym for Suillus grevillei, Greville's bolete or larch bolete, a species (Suillaceae) found in Europe and Asia
 * Cantharellus elegans a mushroom, possibly an unavailable name
 * Craterellus elegans, a species
 * Clavaria elegans, a synonym for Clavulina cristata, a species
 * Caromyxa elegans, Caryomyxa elegans or Corynites elegans, synonyms for Mutinus elegans, the elegant stinkhorn, the dog stinkhorn, the headless stinkhorn or the devil's dipstick, a species (Phallaceae) found in Japan, Europe and eastern North America
 * Colus elegans, a synonym for Pseudocolus fusiformis, the stinky squid, a species (Phallaceae) found in the United States, Australia, Japan, Java and the Philippines
 * Cymatoderma elegans (syn. Cladoderris elegans), a species (Meruliaceae) found in Indonesia
 * Cyrenella elegans, a fungus (Order incertae sedis)
 * Caeoma elegans, a species (not yet assigned to a family)
 * Caeomurus elegans or Coeomurus elegans, synonyms for Uromyces elegans, a species (Pucciniaceae)
 * Coelomomyces elegans, a species (Coelomomycetaceae) found on Culex gelidus in Sri Lanka
 * Chytridium elegans, a species (Chytridiaceae)
 * Chytriomyces elegans, a saprophytic species (Chytriomycetaceae)
 * Cladochytrium elegans, a synonym for Nowakowskiella elegans, a species (Cladochytriaceae)
 * Chaetocladium elegans, a species
 * Chaetostylum elegans , a synonym for Helicostylum elegans, a species
 * Cunninghamella elegans, a species found in soil and also used as a model of mammalian xenobiotics metabolism

Plants

 * Chaetophora elegans, a species (Chaetophoraceae)
 * Chara elegans, a species (Characeae)
 * Chlorosarcina elegans, a terrestrial species (Chlorosarcinaceae)
 * Cladophora elegans f. major, a synonym for Cladophora vagabunda, a marine species (Cladophoraceae) with a worldwide distribution
 * Chlamydobotrys elegans, a synonym for Pyrobotrys elegans, a species (Spondylomoraceae)
 * Chlamydomonas elegans, a freshwater species (Chlamydomonadaceae)
 * Chlorogonium elegans, a species (Haematococcaceae)
 * Closterium elegans, a synonym for Closterium setaceum, a species (Closteriaceae) with a worldwide distribution
 * Cosmarium elegans, a synonym for Cosmarium tetragonum var. elegans, a subspecies (Desmidiaceae)
 * Conjugata elegans, a species (Zygnemataceae)
 * Cephaloziella elegans (syn. Cephalozia elegans), a species (Cephaloziellaceae) found in the Russian Federation
 * Ceramanus elegans, a leafy liverwort (Lepidoziaceae) found in New Zealand
 * Cololejeunea elegans, a species (Lejeuneaceae) found in Cameroon
 * Chaetomitrium elegans, a species (Symphyodontaceae)
 * Cyclosorus elegans, a species (Thelypteridaceae) found in China
 * †Cycadophyllum elegans, an extinct species from the Triassic of Germany
 * †Cyclopteris elegans Lesquereux, 1854, an extinct species from the Carboniferous of Pennsylvania, USA
 * †Cyclopteris elegans Unger, 1856
 * †Cyclopteris elegans Achepohl, 1883, an extinct species from Westphalia, Germany
 * Castalia elegans, a synonym for Nymphaea elegans, the tropical royalblue water-lily, an aquatic plant (Nymphaeaceae) found in Louisiana, Florida and Texas, in the United States, in Oaxaca in Mexico and in Antioquia in Colombia
 * Calea elegans, a synonym for Perymenium acuminatum, a species (Heliantheae) found in Mexico
 * Calostelma elegans, a synonym for Liatris elegans, the pinkscale gayfeather, pinkscale blazingstar or elegant blazingstar, a species (Eupatorieae) native to the southeastern United States
 * Calycadenia elegans, a synonym for Calycadenia pauciflora,the smallflower western rosinweed, a plant (Madieae) found in California
 * Chevreulia elegans, a synonym for Chevreulia acuminata, a species (Gnaphalieae) found in South America
 * Coreopsis elegans or Calliopsis elegans, two synonyms for Coreopsis tinctoria, the plains coreopsis, an annual plant (Coreopsideae) common to much of the United States
 * Crassina elegans, a synonym for Zinnia elegans, a species (Heliantheae) native to Mexico
 * Centaurea elegans, a synonym for Centaurea cineraria, the velvet centaurea, a species (Cynareae) found in Italy
 * Cousinia elegans, a synonym for Cousinia multiloba, a species (Cynareae) found in Afghanistan
 * Cacalia elegans, a synonym for Lessingianthus elegans, a species (Vernonieae) found in Bolivia
 * Crepis elegans, a synonym for Askellia elegans, the elegant hawksbeard, a species (Cichorieae) found in North America
 * Chaetanthera elegans, a species (Mutisieae) found in Chile
 * Clarionea elegans, a synonym for Perezia magellanica, a species (Nassauvieae) found in Argentina and Chile
 * Campanula elegans, a species (Campanuloideae)
 * Clintonia elegans, a synonym for Downingia elegans, the elegant calicoflower or Californian lobelia, a species (Lobelioideae) native to western North America from California to British Columbia
 * Caldenbachia elegans, a synonym for Stenandrium pohlii, Portuguese names Caiapiá or Carapiá, a species (Acanthaceae) native to the Cerrado and Pantanal vegetation of Brazil
 * Callitriche elegans, a synonym for Callitriche palustris, the spiny water starwort, a species of aquatic plants (Plantaginaceae)
 * Castilleja elegans, the elegant Indian paintbrush, a herbaceous plant (Orobanchaceae) found in Canada
 * Citharexylum elegans, a synonym for Rhaphithamnus venustus, the Juan Bueno, a species (Verbenaceae) endemic to the Juan Fernández Islands, an archipelago west of Chile
 * Clytostoma elegans, a species (Bignoniaceae)
 * Chirita elegans, a synonym for Primulina swinglei, a species found in China and Vietnam
 * Codonanthe elegans, a species found in Belize
 * Callicarpa elegans, a species found in the Philippines
 * Colquhounia elegans, a shrub found in Asia
 * Capuronetta elegans, a synonym for Tabernaemontana capuronii, a species (Rauvolfioideae) found in Madagascar
 * Centrostemma elegans or Cyrtoceras elegans, synonyms for Hoya celebica, a species (Asclepiadoideae) found in Indonesia
 * Ceropegia elegans, a species found in India and Sri Lanka
 * Conopharyngia elegans, a synonym for Tabernaemontana elegans, the toad tree, a species (Rauvolfioideae) found eastern Africa
 * Cryptolepis elegans, a synonym for Cryptolepis sinensis, a species
 * Cynanchum elegans, the white-flowered wax plant, a species found in New South Wales in Australia
 * Cleisocratera elegans, a synonym for Saprosma elegans, a species (Rubioidea) found in Indonesia
 * Condaminea elegans, a species found in Peru
 * Coprosma elegans, a species found in New Guinea
 * Calibrachoa elegans, a plant found in Minas Gerais in Brazil
 * Cestrum elegans, the purple cestrum, a plant (Cestroideae)
 * Convolvulus elegans, a synonym for Bonamia elegans, a plant found in Myanmar
 * Carum elegans, a synonym for Bunium elegans, a species (Apioideae, Pyramidoptereae) found in Syria
 * Chaerophyllum elegans, a species (Apioideae, Scandiceae, Scandicinae) found in the Alps from Switzerland, France and Italy
 * Cryptotaenia elegans, also known in Spanish as perejil de Monteverde (Parsley of Monteverde), a species (Apioideae, Oenantheae) endemic to the Canary Islands
 * Chrysophyllum elegans Raunk. ex Warm., a synonym for Chrysophyllum flexuosum, a tree (Sapotaceae) found in Brazil
 * Chrysophyllum elegans (Vink) Baehni, a synonym for Pycnandra elegans, a tree (Sapotaceae) found in New Caledonia
 * Cyclamen elegans, a plant (Primulaceae) found in northern Iran and southeastern Azerbaijan
 * †Celastrinites elegans, an extinct species (Celastraceae) from the Eocene Florissant fossil bed of Colorado
 * Calyptranthes elegans, a species found in the Lesser Antilles
 * Calyptromyrcia elegans, a synonym for Myrcia guianensis, the pedra-ume-caá, a species (Myrtoideae) found in South America
 * Carpolepis elegans, a synonym for Metrosideros elegans, a tree endemic to New Caledonia
 * Carionia elegans, a species
 * Clidemia elegans, a synonym for Clidemia hirta, the soapbush or Koster's curse, an invasive species found in many tropical regions of the world
 * Clarkia elegans, a synonym for Clarkia unguiculata, the elegant clarkia, a species (Onagraceae) found in California
 * Combretum elegans, a synonym for Combretum rotundifolium, the monkey brush, a species (Combretaceae) found in South America
 * Crypteronia elegans, a tree (Crypteroniaceae) found in Sarawak
 * Cuphea elegans, a species (Lythraceae) native to Brazil
 * Calliandra elegans, a species (Mimosoideae) found in Brazil
 * Callisemaea elegans, a species found in Mesoamerica
 * Cassia elegans, a synonym for Senna septemtrionalis, the arsenic bush, a species (Caesalpinioideae)
 * Cavaraea elegans, a synonym for Tamarindus indica, the tamarind, a species (Detarioideae) indigenous to tropical Africa
 * Chesneya elegans, a species (Faboideae) found in Turkey
 * Chorizema elegans, a synonym for Chorizema varium, a species (Faboideae) found in Australia
 * Coronilla elegans, a synonym for Securigera elegans, a species
 * Crotalaria elegans, a synonym for Crotalaria peduncularis, a species (Faboideae, Crotalarieae) found in India
 * Cryptosepalum elegans, a species (Caesalpinioideae) found in Angola
 * Casearia elegans, a synonym for Casearia bartlettii, a species found in Belize and Guatemala
 * Chamaesyce elegans, a synonym for Euphorbia elegans, a species (Euphorbioideae)
 * Claoxylon elegans, a synonym for Claoxylon longifolium, a species (Acalyphoideae) found in Assam, South-East Asia, New Guinea and Caroline Islands
 * Codiaeum elegans, a synonym for Codiaeum variegatum, the garden croton or variegated croton, a plant (Codiaeae) native to Indonesia, Malaysia, Australia and the western Pacific Ocean islands
 * Croton elegans, a shrub (Crotoneae) endemic to the Ecuadorean Andes
 * Calophyllum elegans, a tropical tree found in Asia
 * Clusiella elegans, a species found in Colombia
 * Capparis elegans (syn. Capparidastrum elegans), a species (Capparaceae) found in Brazil
 * Corynandra elegans, the elegant spider-flower, a species (Cleomaceae) found in the Konkan region of Maharashtra, India
 * Capsella elegans, a synonym for Capsella bursa-pastoris, the shepherd's purse, a species native to eastern Europe and Asia minor but naturalized elsewhere
 * Chorispora elegans, a species found in China and Pakistan
 * Clypeola elegans, a species found in Turkey
 * Chabertia elegans, a species
 * Coluria elegans, a synonym for Coluria longifolia, a species (Rosoideae) found in China
 * Cotoneaster elegans, a species (Amygdaloideae) found in China
 * Crataegus elegans, a synonym for Crataegus monogyna, the common hawthorn or single-seeded hawthorn, a species (Amygdaloideae) native to Europe, northwest Africa and western Asia
 * Callianthe elegans, a plant (Malveae) found in Brazil
 * Cola elegans, a species of trees (Sterculioideae) found in Gabon
 * Cristaria elegans, a plant native to Chile
 * Canarium elegans, a species found in Madagascar
 * Conchocarpus elegans (syn. Cusparia elegans), a species found in Brazil
 * Cardiospermum elegans, a synonym for Cardiospermum grandiflorum, the balloon vine, heart pea or heart seed, a climbing plant found in Argentina and Brazil
 * Cupania elegans, a horticultural name (a name that has never been validly published in scientific literature) for a species (Sapindoideae)
 * Campylia elegans, a synonym for Pelargonium elegans, a species found in South Africa
 * Cissarobryon elegans, a species
 * Cissus elegans, a species
 * Corallocarpus elegans, a species (Cucurbitoideae) found in Africa
 * Cyclanthera elegans, a synonym for Cyclanthera tonduzii, a species found in Costa Rica
 * Cocculus elegans, a synonym for Cocculus orbiculatus, the Queen coralbead, a woody vine found from India east to Java
 * Cyclea elegans, a species found in Sumatra, Malaya, Borneo
 * Corydalis elegans (syn. Capnoides elegans), a species (Fumarioideae) found in India, China and the West Himalayas
 * Cheiropsis elegans, a synonym for Clematis cirrhosa, a species (Ranunculoideae)
 * Calandrinia elegans, a species (Portulacaceae)
 * Calligonum elegans, a plant (Polygonaceae) found in Uzbekistan
 * Cerastium elegans, a synonym for Cerastium cerastoides, a plant (Caryophyllaceae) found in Mountain regions of Europe
 * Conophytum elegans, a succulent plant (Aizoaceae)
 * Cactus elegans Link, a synonym for Disocactus phyllanthoides, a species (Cactoideae, Hylocereeae) native from Mesoamerica
 * Cactus elegans (DC.) Kuntze, a synonym for Mammillaria elegans, a species (Cactoideae, Cacteae) native to Mexico
 * Cereus elegans, a cactus (Cactoideae, Cereeae)
 * Comandra elegans, a synonym for Comandra umbellata, the bastard toadflax, umbellate bastard toadflax or common comandra, a species found in North America and the Mediterranean
 * Crassula elegans, the elegant crassula, a plant (Crassulaceae)
 * Cinnamomum elegans, a species found in Samoa
 * Cryptocarya elegans, a species
 * Calamus elegans, a species (Calamoideae)
 * Calyptrocalyx elegans, a species (Arecoideae) found in Papua New Guinea and the nearby Maluku Islands
 * Chamaedorea elegans (syn. Collinia elegans), the neanthe bella palm or parlour palm, a species (Arecoideae, Hyophorbeae) native to the rainforests in Southern Mexico and Guatemala
 * Coccothrinax elegans, a species (Coryphoideae) found in Cuba
 * Cyphophoenix elegans, a species found only in New Caledonia
 * Cyrtostachys elegans, a species (Arecoideae) endemic to New Guinea
 * Calectasia elegans, the elegant tinsel lily, a species found in Western Australia
 * Carex elegans, a synonym for Carex limosa, the mud sedge and shore sedge, a species found across North America and Eurasia
 * Cyperus elegans,the Royal flatsedge, a species from Central and South America
 * Comanthera elegans, a species found in Minas Gerais, Brazil
 * Calotheria elegans, a synonym for Enneapogon elegans, a species (Eragrostideae) found in Burma and Tamil Nadu, India
 * Chloris elegans, a synonym for Chloris virgata, the feather fingergrass or feather windmillgrass, a species native to many of the warmer temperate, subtropical and tropical regions of the world
 * Ctenium elegans (syn. Campulosus elegans), a species found from Senegal to the Sudan
 * Callichloea elegans, a synonym for Elionurus elegans, a species (Andropogoneae) found in Nigeria and Senegal
 * Ceresia elegans, a synonym for Paspalum ceresia, a species found in South America
 * Cymbopogon elegans, a species
 * Calamagrostis elegans, a synonym for Calamagrostis eminens, a species (Poeae, Agrostidinae) found in South America
 * Calotheca elegans or Chascolytrum elegans, synonyms for Chascolytrum brizoides, a species (Poeae, Brizinae) found in Buenos Aires, Uruguay, Rio Grande do Sul and Biobio
 * Cynosurus elegans (syn. Chrysurus elegans), a species (Poeae, Cynosurinae) found in southern Europe, north Africa, Middle East and Turkmenistan
 * Chusquea elegans, a species (Bambuseae) found in Paraná, Brazil
 * Callisia elegans, a synonym for Callisia gentlei var. elegans, a subspecies (Commelinoideae) found in Oaxaca, Chiapas, Guatemala and Honduras
 * Commelina elegans, a synonym for Commelina erecta, the white mouth dayflower or slender dayflower, a perennial herb native throughout the Americas, Africa and western Asia
 * Calathea elegans, a plant (Marantaceae) found in Colombia and Panama
 * Canna elegans, a synonym for Canna glauca, a species (Cannaceae) from the wetlands of tropical America
 * Crinum elegans, a synonym for Crinum lorifolium, a species (Amaryllidoideae) found in India and Myanmar
 * Crocus elegans, a species (Crocoideae) found in Turkey
 * Cypella elegans, a herbaceous plant found in Argentina
 * Caladenia elegans (syn. Calonema elegans or Calonemorchis elegans), the elegant spider-orchid, a species found in Western Australia
 * Chloraea elegans, a species found in Argentine
 * Cyclopogon elegans, a species found in Brazil and Argentina
 * Cynorkis elegans, a species found in Madagascar
 * Cattleya elegans, a synonym for Cattleya × elegans, a hybrid (Epidendreae, Laeliinae) found in Brazil
 * Cestichis elegans, a synonym for Liparis elegans, a species (Malaxideae) found in South East Asia (Indonesia, Papua New Guinea)
 * Cirrhopetalum elegans, an epiphytic species (Dendrobieae, Bulbophyllinae) found in Malaya
 * Cleisostoma elegans, a synonym for Cleisostoma williamsoni, Williamson's Cleisostom, a species (Vandeae) found in Asia
 * Crocodeilanthe elegans, a species (Epidendreae, Pleurothallidinae) found from Venezuela to Ecuador
 * Cymbidium elegans (syn. Cyperorchis elegans), a species (Cymbidieae) found in South West China
 * Crepidium elegans, a species (Malaxideae) found in Malesia
 * Cyrtopodium elegans, a synonym for Tetramicra canaliculata, a species (Epidendreae, Laeliinae) found in Florida, Hispaniola, Puerto Rico, Trinidad and the Lesser Antilles
 * Cypripedium elegans, a species found in Nepal and China
 * Calochortus elegans (synonym Cyclobothra elegans (Pursh) Benth.), the elegant Mariposa lily or cat's ear, a plant found in the western United States from northern California to Montana
 * Cyclobothra elegans Torr., a synonym for Calochortus coeruleus, the beavertail grass or blue star tulip, a species endemic to California
 * Cephalomanes elegans, a filmy fern (Hymenophyllaceae)
 * Callipteris elegans, a species (Athyriaceae) found in Asia
 * Cheilanthes elegans, a synonym for Cheilanthes myriophylla, the Central American lace fern, a species (Pteridaceae) native as far south as Argentina
 * Colysis elegans, a species (Polypodiaceae) found in China
 * Cyathea elegans, a synonym for Cyathea grevilleana, a species (Cyatheaceae) found in Jamaica
 * †Cunninghamites elegans (syn. Cunninghamia elegans), an extinct species from the Late Cretaceous of Europe
 * Callitris elegans, a species (Callitroideae) described from Australia
 * †Circulisporites elegans, a species known from Triassic spores and pollen grains

Other eukaryotes

 * Centropyxiella elegans, a species (Centropyxidae) found in the European waters of the North Atlantic Ocean
 * Collaria elegans (syn. Comatricha elegans), a species (Stemonitidaceae)
 * Cribraria elegans, a slime mold (Cribrariaceae) found in the United States, Europe and Japan
 * Calospeira elegans, a slime mold (Dictyosteliales incertae sedis)
 * Cladospongia elegans, a species found in India
 * Codonosiga elegans, a species
 * Callonema elegans, a synonym for Stylonema alsidii (Stylonemataceae), a marine species with a worldwide distribution
 * Calocladia elegans, a synonym for Delisea elegans, a species (Bonnemaisoniaceae)
 * Callithamnion elegans, a synonym for Gymnothamnion elegans, a species (Wrangeliaceae) found in South Africa
 * Capraella elegans, a synonym for Martensia elegans, a species (Delesseriaceae) found in South Africa
 * Ceramium elegans or Conferva elegans, synonyms for Ceramium diaphanum var. elegans, a red alga (Ceramiaceae)
 * Colaconema elegans, a marine species (Colaconemataceae) found in Korea, California and Brazil
 * Chondracanthus elegans, a red alga (Gigartinaceae)
 * Claudea elegans, a marine species (Delesseriaceae) found in tropical waters in Australia, India, Pakistan and Brazil
 * Cruoriella elegans, a species (Peyssonneliaceae) found in the southern islands of Japan
 * Cheilosporum elegans, a synonym for Jania cultrata, a species (Corallinoideae)
 * Corallina elegans, a species (Corallinoideae) from the Mediterranean Sea and the North Atlantic Ocean
 * Corallina elegans Lenormand ex Areschoug, 1852, a synonym for Jania rubens var. corniculata, a subspecies (Corallinoideae)
 * †Cuneolina elegans, an extinct species (†Cuneolinidae) from the Lower Paleogene of Austria
 * Cassidulina elegans, a synonym for Globocassidulina elegans, a marine species (Cassidulinidae) found in the Japanese and New Zealand Exclusive Economic Zones
 * †Cibicides elegans, an extinct species (Cibicididae) from the Tertiary of the Dominican Republic
 * Cibusoides elegans, a benthonic species (Heterolepidae) from the Pacific Ocean
 * †Cyclammina elegans, an extinct species (Cyclamminidae) from the Cretaceous of Trinidad and from New Zealand
 * †Cristellaria elegans, an extinct species (Peneroplidae)
 * Clathrocyclas elegans, a species (Theoperidae)
 * †Cornutanna elegans, an extinct species from the Miocene of Italy
 * †Cana elegans, an extinct species (†Pantanelliidae) from the Cretaceous of Northwest Turkey
 * †Cenellipsis elegans, a species (incertae sedis) from the Paleocene of Western Kuban
 * Cromyatractus elegans, a species (incertae sedis) from the North Western Pacific Ocean
 * Clathrulina elegans, a heliozoan species (Clathrulinidae) found in freshwater environments
 * Castanidium elegans, a species (Castanellidae) found in the Sargasso Sea and in the current around the Canary Islands
 * Chromidina elegans, a species (Opalinopsidae) parasite of the cuttlefish Sepia elegans described from Naples, Italy
 * Cryptochilum elegans, a synonym for Uronema elegans, a species (Uronematidae) found in Norway
 * Cothurnia elegans, a species of pritrichs (Vaginicolidae) found in Australia
 * Cavichona elegans, a species (Spirochonidae)
 * Centrodinium elegans , a synonym for Oxytoxum elegans, a species (Oxytoxaceae) found in the Gulf of Mexico, the Lebanese Exclusive Economic Zone waters and the North Atlantic Ocean
 * Corythodinium elegans, a species (Oxytoxaceae) with a worldwide distribution
 * Ceratium elegans Schröder, 1906, a synonym for Tripos elegans, a species (Ceratiaceae)
 * †Clathroctenocystis elegans, an extinct species (Microdiniaceae) from the Cretaceous of Alaska, USA
 * Cymbodinium elegans, a marine species (Kofoidiniaceae)
 * Characiopsis elegans, a freshwater species (Characiopsidaceae) described from Arkansas, North America and Brazil, South America
 * Chromulina elegans, a freshwater species (Chromulinaceae) found in Europe, South America and Asia
 * Chrysococcus elegans (syn. Chrysococcocystis elegans), a freshwater species (Dinobryaceae) found in North America
 * Campylodiscus elegans, a species (Surirellaceae)
 * Climacosphenia elegans, a marine pennate species (Climacospheniaceae)
 * Cocconeis elegans, a species (Cocconeidaceae) found in Sicily
 * Cymbella elegans, a species (Cymbellaceae)
 * †Corinna elegans, an extinct species from the Cretaceous of Canada
 * †Cosmiodiscus elegans, an extinct species
 * †Craspedoporus elegans, an extinct marine species from a deposit from Oamaru, Otago, New Zealand
 * Coscinodiscus elegans, a species found in the Gulf of Mexico
 * Craspedodiscus elegans, a species
 * Chrysochromulina elegans, a species (Prymnesiaceae) found in Baltic Sea in Europe and in Brazil in South America
 * Chroomonas elegans, a species (Chroomonadaceae) found in Lake Neusiedl, at the Austria-Hungarian border
 * Cryptaulax elegans, a species (Cryptomonadaceae) found in tropical marine sediments
 * †Cheleutochroa elegans, an extinct species from the Ordovician of Estonia
 * †Coryphidium elegans, an extinct species from the Tremadocian, the lower age of the Ordovocian, of Morocco

Other species

 * Cyanonephron elegans, a freshwater species (Synechococcaceae) described in the Netherlands, Russia and Australia
 * †Clonophycus elegans, an extinct species of microalgae found in the Barney Creek Formation of the Middle Proterozoic of Northern Australia