S. gracilis

S. gracilis may refer to:
 * Sageretia gracilis, a shrub species with slightly shiny dark green leaves and yellow-green flowers
 * Sarcocystis gracilis, a parasitic protozoan species in the genus Sarcocystis infecting dogs
 * Saurida gracilis, the gracile lizardfish, a fish species found in the Indo- pacific region
 * Scaphispatha gracilis, a plant species endemic to South America
 * Sellosaurus gracilis, a prosauropod dinosaur species of Triassic Europe
 * Senoculus gracilis, a spider species in the genus Senoculus found from Guyana to Argentina
 * Sepiadarium gracilis, a cuttlefish species native to the Indo-Pacific
 * Sillago gracilis, the trumpeter whiting, a fish species
 * Sloanea gracilis, a plant species endemic to Suriname
 * Smilodectes gracilis, an adapiformes primate species from the early Eocene
 * Smilodon gracilis, the slender smilodon, an extinct carnivorous mammal species
 * Spartina gracilis, the alkali cordgrass, a plant species
 * Sphodromantis gracilis, a praying mantis species found in the Transvaal
 * Spilogale gracilis, the Western spotted skunk
 * Spratelloides gracilis, the slender sprat, a sprat fish species
 * Stemonoporus gracilis, a plant species endemic to Sri Lanka
 * Streptocephalus gracilis, a crustacean species endemic to South Africa
 * Syrnolopsis gracilis, a gastropod species

Synonyms

 * Scaphyglottis gracilis, a synonym for Scaphyglottis prolifera
 * Segestria gracilis, a synonym for Segestria florentina
 * Slabberina gracilis, a synonym for Eurydice pulchra