Introduced mollusks-gastropods:
| Mollusks-Gastropods | Assiminea parasitologica | a brackish water snail |
| Mollusks-Gastropods | Astralium triumphans | gastropod |
| Mollusks-Gastropods | Batillaria attramentaria | Japanese false cerith |
| Mollusks-Gastropods | Biomphalaria glabrata | bloodfluke planorb |
| Mollusks-Gastropods | Biomphalaria havanensis | ghost rams-horn |
| Mollusks-Gastropods | Bithynia tentaculata | mud bithynia, faucet snail |
| Mollusks-Gastropods | Boonea bisuturalis | two-groove odostome |
| Mollusks-Gastropods | Busycotypus canaliculatus | channeled whelk |
| Mollusks-Gastropods | Cecina manchurica | Manchurian cecina |
| Mollusks-Gastropods | Cipangopaludina chinensis | Chinese mysterysnail |
| Mollusks-Gastropods | Cipangopaludina chinensis malleata | Chinese mysterysnail |
| Mollusks-Gastropods | Cipangopaludina japonica | Japanese mysterysnail |
| Mollusks-Gastropods | Cittarium pica | West Indian topsnail |
| Mollusks-Gastropods | Collisella striata | Striate limpet |
| Mollusks-Gastropods | Creedonia succinea | a pulmonate snail |
| Mollusks-Gastropods | Crepidula aculeata | spiny slippersnail |
| Mollusks-Gastropods | Crepidula convexa | convex slippersnail |
| Mollusks-Gastropods | Crepidula fornicata | common Atlantic slippersnail |
| Mollusks-Gastropods | Crepidula onyx | onyx slippersnail |
| Mollusks-Gastropods | Crepidula plana | eastern white slippersnail |
| Mollusks-Gastropods | Crucibulum spinosum | spiny cup-and-saucer shell |
| Mollusks-Gastropods | Cypraea clandestina | cowrie |
| Mollusks-Gastropods | Cypraea cribraria | cowrie |
| Mollusks-Gastropods | Cypraea cylindrica | cowrie |
| Mollusks-Gastropods | Cypraea gaspardi | cowrie |
| Mollusks-Gastropods | Cypraea hirundo | cowrie |
| Mollusks-Gastropods | Diodora ruppelli | a limpet |
| Mollusks-Gastropods | Drepanotrema aeruginosus | rusty rams-horn |
| Mollusks-Gastropods | Drepanotrema cimex | ridged rams-horn |
| Mollusks-Gastropods | Drepanotrema kermatoides | crested rams-horn |
| Mollusks-Gastropods | Elimia livescens | liver elimia |
| Mollusks-Gastropods | Elimia virginica | Piedmont elimia |
| Mollusks-Gastropods | Eualetes tulipa | |
| Mollusks-Gastropods | Eurosaria poraria | cowrie |
| Mollusks-Gastropods | Fossaria viridis | |
| Mollusks-Gastropods | Gillia altilis | buffalo pebblesnail |
| Mollusks-Gastropods | Haliotis rufescens | red abalone |
| Mollusks-Gastropods | Helisoma sp. | unidentified rams-horn |
| Mollusks-Gastropods | Hima (=Nassarius) fratercula | Japanese nassa |
| Mollusks-Gastropods | Hinemoa indica | |
| Mollusks-Gastropods | Hipponix australis | a limpet |
| Mollusks-Gastropods | Littorina brevicula | Asian periwinkle |
| Mollusks-Gastropods | Littorina littorea | common periwinkle |
| Mollusks-Gastropods | Littorina saxatilis | rough periwinkle |
| Mollusks-Gastropods | Marisa cornuarietis | giant rams-horn snail |
| Mollusks-Gastropods | Mauritia depressa | cowrie |
| Mollusks-Gastropods | Melanoides tuberculatus | red-rim melania |
| Mollusks-Gastropods | Melanoides turriculus | fawn melania |
| Mollusks-Gastropods | Microtralia ovula | a pulmonate snail |
| Mollusks-Gastropods | Monodonta labio | |
| Mollusks-Gastropods | Myosotella myosotis | marsh snail |
| Mollusks-Gastropods | Nassarius obsoletus | eastern mudsnail |
| Mollusks-Gastropods | Neptunea arthritica | whelk |
| Mollusks-Gastropods | Ocinebrellus [=Ceratostoma] inornatus | Japanese oyster drill |
| Mollusks-Gastropods | Philine auriformis | New Zealand sea slug |
| Mollusks-Gastropods | Physa skinneri | glass physa |
| Mollusks-Gastropods | Physella acuta | European physa |
| Mollusks-Gastropods | Physella sp. | a physa |
| Mollusks-Gastropods | Pila conica | a snail |
| Mollusks-Gastropods | Pila luzonica | snail |
| Mollusks-Gastropods | Planorbella duryi | Seminole rams-horn |
| Mollusks-Gastropods | Pleurocera acuta | sharp hornsnail |
| Mollusks-Gastropods | Pomacea bridgesii | spiketop applesnail |
| Mollusks-Gastropods | Pomacea canaliculata | channeled applesnail |
| Mollusks-Gastropods | Pomacea cumingii | an applesnail |
| Mollusks-Gastropods | Pomacea diffusa | spike-topped applesnail |
| Mollusks-Gastropods | Pomacea haustrum | titan applesnail |
| Mollusks-Gastropods | Pomacea insularum | island applesnail |
| Mollusks-Gastropods | Pomacea maculata | giant applesnail |
| Mollusks-Gastropods | Pomacea paludosa | Florida applesnail |
| Mollusks-Gastropods | Pomacea sp. | an applesnail |
| Mollusks-Gastropods | Potamopyrgus antipodarum | New Zealand mudsnail |
| Mollusks-Gastropods | Pseudosuccinna columella | mimic lymnaea |
| Mollusks-Gastropods | Radix auricularia | European ear snail |
| Mollusks-Gastropods | Rapana thomasiana | Black sea murex |
| Mollusks-Gastropods | Rapana venosa | veined rapa whelk |
| Mollusks-Gastropods | Sabia conica | a limpet |
| Mollusks-Gastropods | Stenophysa marmorata | marbled aplexa |
| Mollusks-Gastropods | Stenophysa maugeriae | tawny aplexa |
| Mollusks-Gastropods | Stramonita haemastoma | Florida rocksnail |
| Mollusks-Gastropods | Tarebia granifera | quilted melania |
| Mollusks-Gastropods | Thais clavigera | a rocksnail |
| Mollusks-Gastropods | Thiara scabra | Pagoda tiara |
| Mollusks-Gastropods | Truncatella subcylindrica | looping snail |
| Mollusks-Gastropods | Turbo marmoratus | Great Green Turban |
| Mollusks-Gastropods | Turbo soronatus coreensis | |
| Mollusks-Gastropods | Urosalpinx cinerea | Atlantic oyster drill |
| Mollusks-Gastropods | Valvata piscinalis | European stream valvata |
| Mollusks-Gastropods | Vermetus alii | |
| Mollusks-Gastropods | Vitularia miliaris | spotted vitularia |
| Mollusks-Gastropods | Viviparus georgianus | banded mysterysnail |
| Mollusks-Gastropods | Viviparus subpurpureus | olive mysterysnail |
| Mollusks-Gastropods | Viviparus viviparus | snail |