List of data deficient invertebrates

As of July 2016, the International Union for Conservation of Nature (IUCN) lists 5278 data deficient invertebrate species. 29% of all evaluated invertebrate species are listed as data deficient. The IUCN also lists 57 invertebrate subspecies as data deficient.

No subpopulations of invertebrates have been evaluated by the IUCN.

This is a complete list of data deficient invertebrate species and subspecies as evaluated by the IUCN.

Nemertea species

 * Argonemertes stocki

Onychophora

 * Mesoperipatus tholloni

Molluscs
There are 1988 mollusc species and 40 mollusc subspecies assessed as data deficient.

Gastropods
There are 1526 gastropod species and 37 gastropod subspecies assessed as data deficient.

Vetigastropoda

 * Teinostoma fernandesi
 * Teinostoma funiculatum

Stylommatophora
Stylommatophora includes the majority of land snails and slugs. There are 392 species and 32 subspecies in the order Stylommatophora assessed as data deficient.

Subulinids
Species

Subspecies
 * Opeas nothapalinus crenatum
 * Pseudoglessula leroyi fasciata

Streptaxids
Species

Subspecies

Polygyrids
Species

Subspecies

Helminthoglyptids
Species Subspecies
 * Shasta sideband (Monadenia troglodytes)

Bradybaenids
Species

Subspecies
 * Euhadra scaevola mikawa

Other Stylommatophora
Species

Subspecies
 * Idaho banded mountain snail (Oreohelix idahoensis idahoensis)
 * Carinated striate banded mountain snail (Oreohelix strigosa goniogyra)

Littorinimorpha
There are 565 species and one subspecies in the order Littorinimorpha assessed as data deficient.

Strombids

 * Ophioglossolambis violacea

Bithyniids
Species

Subspecies
 * Gabbiella humerosa tanganyicensis

Sorbeoconcha
There are 97 species and one subspecies in the order Sorbeoconcha assessed as data deficient.

Batillarids

 * Batillaria mutata

Semisulcospirids

 * Oasis juga (Juga laurae)

Paludomids
Species

Subspecies
 * Cleopatra bulimoides pauli

Architaenioglossa
There are 106 species and one subspecies in the order Architaenioglossa assessed as data deficient.

Cyclophorids
Species

Subspecies
 * Chamalychaeus itonis nakashimai

Cycloneritimorpha
There are 30 species and two subspecies in the order Cycloneritimorpha assessed as data deficient.

Helicinids
Species

Subspecies
 * Pleuropoma zigzac ponapense
 * Pleuropoma zigzac zigzac

Hygrophila species
There are 197 Hygrophila species assessed as data deficient.

Latiids

 * Latia lateralis

Neogastropoda
There are 113 species in the order Neogastropoda assessed as data deficient.

Archaeopulmonata

 * Salinator sanchezi
 * Salinator swatowensis

Bivalvia
There are 171 species and three subspecies in the class Bivalvia assessed as data deficient.

Pectinida

 * Nodipecten magnificus

Unionida
There are 95 species in the order Unionoida assessed as data deficient.

Margaritiferids

 * Margaritifera dahurica
 * Margaritifera laevis

Mycetopodids

 * Anodontites elongatus
 * Anodontites trigonus

Veneroida
There are 74 species and three subspecies in the order Veneroida assessed as data deficient.

Dreissenids

 * Dreissena iconica

Sphaeriids
Species

Subspecies
 * Musculium hartmanni naivashaens

Cyrenids
Species

Subspecies
 * Corbicula fluminalis cunningtoni
 * Corbicula fluminalis tanganyicensis

Solecurtids

 * Novaculina siamensis

Mytilida

 * Sinomytilus morrisoni

Cephalopods
There are 291 cephalopod species assessed as data deficient.

Octopuses
There are 34 octopus species assessed as data deficient.

Argonautids

 * Argonauta cornuta

Sepioloida
There are 142 species in Sepioloida assessed as data deficient.

Oegopsina species
There are 104 Oegopsina species assessed as data deficient.

Cnidaria
There are 166 species in the phylum Cnidaria assessed as data deficient.

Hydrozoa

 * Millepora braziliensis
 * Millepora nitida

Anthozoa
There are 164 species in the class Anthozoa assessed as data deficient.

Tube-dwelling anemones

 * Arachnanthus oligopodus

Scleractinia
There are 145 species in the order Scleractinia assessed as data deficient.

Arthropods
There are 2875 arthropod species and 17 arthropod subspecies assessed as data deficient.

Branchiopoda

 * Streptocephalus kargesi

Maxillopoda
Maxillopoda includes barnacles, copepods and a number of related animals. There are 22 species in the class Maxillopoda assessed as data deficient.

Sessilia

 * Armatobalanus nefrens
 * Balanus aquila

Calanoida
There are 19 species in the order Calanoida assessed as data deficient.

Temorids

 * Epischura massachusettsensis

Harpacticoida

 * Thermomesochra reducta

Malacostracans
Malacostraca includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. There are 1130 malacostracan species and 17 malacostracan subspecies assessed as data deficient.

Isopods

 * Echinodillo cavaticus
 * Styloniscus sp. nov.

Decapods
There are 1128 decapod species and 17 decapod subspecies assessed as data deficient.

Atyids
Species

Subspecies

Palaemonids
Species

Subspecies

Insects
There are 1702 insect species assessed as data deficient.

Blattodea

 * Miriamrothschildia zonatus

Orthoptera
There are 50 species in the order Orthoptera assessed as data deficient.

Hymenoptera
There are 316 species in the order Hymenoptera assessed as data deficient.

Lepidoptera
Lepidoptera comprises moths and butterflies. There are 87 species in the order Lepidoptera assessed as data deficient.

Beetles
There are 377 beetle species assessed as data deficient.

Odonata
Odonata includes dragonflies and damselflies. There are 868 species in the order Odonata assessed as data deficient.

Echinoderms
There are 244 echinoderm species assessed as data deficient.