FWGNA > Taxonomic Species Index
Sortable Taxonomic Index
The 87 species and subspecies currently covered by the Freshwater Gastropods of North America project are ordered below by Subclass, Family, Genus, species, and (in some cases) subspecies. Users who do not find specific or generic nomina expected in the list below are referred to the alphabetical index for synonyms.

Click the state column headers to sort by presence/absence in each state. Click a second time to reverse the yes/no sort. Also note, that for economy of space, two-letter abbreviations are used to denote the six regions—Mid-Atlantic, Virginia (Atlantic), North Carolina (Atlantic), South Carolina, Georgia (Atlantic), and East Tennessee—as defined in each region's section.

Subclass Family Genus Species Subspecies MA VA NC SC GA TN
Prosobranchs Ampullariidae Pomacea maculata no no no yes yes no
Prosobranchs Ampullariidae Pomacea paludosa no no no yes yes no
Prosobranchs Viviparidae Bellamya chinensis yes no no no no no
Prosobranchs Viviparidae Bellamya japonica yes yes yes yes no no
Prosobranchs Viviparidae Campeloma decisum yes yes yes yes yes yes
Prosobranchs Viviparidae Lioplax subcarinata yes yes yes yes no no
Prosobranchs Viviparidae Viviparus georgianus yes yes no yes yes no
Prosobranchs Viviparidae Viviparus intertextus no no yes yes yes no
Prosobranchs Viviparidae Viviparus subpurpureus no no no yes no yes
Prosobranchs Valvatidae Valvata bicarinata yes no yes yes yes no
Prosobranchs Valvatidae Valvata tricarinata yes yes no yes yes no
Prosobranchs Hydrobiidae Amnicola limosa yes yes yes yes yes yes
Prosobranchs Hydrobiidae Clappia umbilicata no no no no no yes
Prosobranchs Hydrobiidae Floridobia spp. no no yes no yes no
Prosobranchs Hydrobiidae Fontigens bottimeri yes yes no no no no
Prosobranchs Hydrobiidae Fontigens morrisoni no yes no no no no
Prosobranchs Hydrobiidae Fontigens nickliniana yes yes no no no yes
Prosobranchs Hydrobiidae Fontigens orolibas yes yes no no no yes
Prosobranchs Hydrobiidae Fontigens tartarea no yes no no no no
Prosobranchs Hydrobiidae Gillia altilis no yes yes yes no no
Prosobranchs Hydrobiidae Holsingeria unthanksensis no yes no no no yes
Prosobranchs Hydrobiidae Littorinidops tenuipes yes yes yes yes yes no
Prosobranchs Hydrobiidae Lyogyrus granum yes yes yes yes yes yes
Prosobranchs Hydrobiidae Lyogyrus latus no no no no yes no
Prosobranchs Hydrobiidae Marstonia agarhecta no no no no yes no
Prosobranchs Hydrobiidae Marstonia arga no no no no no yes
Prosobranchs Hydrobiidae Marstonia gaddisorum no no no no yes no
Prosobranchs Hydrobiidae Marstonia halcyon no no no no yes no
Prosobranchs Hydrobiidae Marstonia lustrica no no no no no no
Prosobranchs Hydrobiidae Marstonia ogmorhaphe no no no no no yes
Prosobranchs Hydrobiidae Notogillia sathon no no no no yes no
Prosobranchs Hydrobiidae Potamopyrgus antipodarum yes no no no no no
Prosobranchs Hydrobiidae Somatogyrus virginicus no yes yes yes yes yes
Prosobranchs Hydrobiidae Somatogyrus parvulus no no no no no yes
Prosobranchs Hydrobiidae Somatogyrus pennsylvanicus yes no no no no no
Prosobranchs Hydrobiidae Spilochlamys turgida no no no no yes no
Prosobranchs Pomatiopsidae Pomatiopsis cincinnatiensis no no no no no yes
Prosobranchs Pomatiopsidae Pomatiopsis lapidaria yes no no no no yes
Prosobranchs Bithyniidae Bithynia tentaculata yes yes no no no no
Prosobranchs Pleuroceridae Io fluvialis no no no no no yes
Prosobranchs Pleuroceridae Leptoxis carinata yes yes yes no no yes
Prosobranchs Pleuroceridae Leptoxis crassa no no no no no yes
Prosobranchs Pleuroceridae Leptoxis praerosa no no no no no yes
Prosobranchs Pleuroceridae Lithasia verrucosa no no no no no yes
Prosobranchs Pleuroceridae Pleurocera canaliculata canaliculata no no no no no yes
Prosobranchs Pleuroceridae Pleurocera canaliculata pyrenellum no no no no no yes
Prosobranchs Pleuroceridae Pleurocera catenaria catenaria no yes yes yes yes yes
Prosobranchs Pleuroceridae Pleurocera catenaria dislocata no yes yes yes yes no
Prosobranchs Pleuroceridae Pleurocera clavaeformis clavaeformis no no no no no yes
Prosobranchs Pleuroceridae Pleurocera clavaeformis unciale no no no no no yes
Prosobranchs Pleuroceridae Pleurocera ebenum no no no no no no
Prosobranchs Pleuroceridae Pleurocera floridensis timidus no no no no yes no
Prosobranchs Pleuroceridae Pleurocera gabbiana no no no no no yes
Prosobranchs Pleuroceridae Pleurocera laqueata no no no no no yes
Prosobranchs Pleuroceridae Pleurocera modesta no no no no no yes
Prosobranchs Pleuroceridae Pleurocera proxima yes yes yes yes yes yes
Prosobranchs Pleuroceridae Pleurocera semicarinata no yes no no no no
Prosobranchs Pleuroceridae Pleurocera simplex no no no no no yes
Prosobranchs Pleuroceridae Pleurocera troostiana no no no no no yes
Prosobranchs Pleuroceridae Pleurocera virginica yes yes yes no no no
Pulmonates Lymnaeidae Lymnaea caperata no no no no no no
Pulmonates Lymnaeidae Lymnaea catascopium yes no no no no no
Pulmonates Lymnaeidae Lymnaea columella yes yes yes yes yes yes
Pulmonates Lymnaeidae Lymnaea cubensis no no yes yes yes no
Pulmonates Lymnaeidae Lymnaea elodes yes no no no no no
Pulmonates Lymnaeidae Lymnaea humilis yes yes yes yes yes yes
Pulmonates Physidae Aplexa hypnorum yes no no no no no
Pulmonates Physidae Physa acuta yes yes yes yes yes yes
Pulmonates Physidae Physa carolinae yes yes yes yes yes no
Pulmonates Physidae Physa gyrina yes yes yes no yes yes
Pulmonates Physidae Physa pomilia yes yes yes yes yes yes
Pulmonates Physidae Physa vernalis yes no no no no no
Pulmonates Planorbidae Biomphalaria obstructa no no no yes yes no
Pulmonates Planorbidae Gyraulus deflectus yes yes no no no no
Pulmonates Planorbidae Gyraulus parvus yes yes yes yes yes yes
Pulmonates Planorbidae Helisoma anceps yes yes yes yes yes yes
Pulmonates Planorbidae Helisoma campanulatum yes no no no no no
Pulmonates Planorbidae Helisoma eucosmium no no yes no no no
Pulmonates Planorbidae Helisoma magnifica no no yes no no no
Pulmonates Planorbidae Helisoma trivolvis yes yes yes yes yes yes
Pulmonates Planorbidae Menetus dilatatus yes yes yes yes yes yes
Pulmonates Planorbidae Planorbula armigera yes yes yes no no no
Pulmonates Planorbidae Promenetus exacuous yes yes yes yes yes no
Pulmonates Ancylidae Ferrissia fragilis yes yes yes yes yes yes
Pulmonates Ancylidae Ferrissia rivularis yes yes no no no yes
Pulmonates Ancylidae Hebetancylus excentricus no yes yes yes yes no
Pulmonates Ancylidae Laevapex fuscus yes yes yes yes yes yes