. . "LR/nt" . . "The geniculate river snail or ornate rocksnail, scientific name Lithasia geniculata, is a species of freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae. This species is endemic to the United States."@en . . "IUCN2.3" . "Geniculate river snail"@en . . . .