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1,156 littorinimorpha species
Naria cernica
Fluminicola modoci
Casmaria erinaceus
Fluminicola fresti
Fluminicola klamathensis
Marsenina glabra
Charonia tritonis
Tutufa bufo
Mexithauma quadripaludium
Heleobops carrikeri
Malea ringens
Bursa rosa
Tryonia infernalis
Monetaria annulus
Neverita didyma
Aporrhais pespelecani
Cypraea tigris
Amnicola cora
Avenionia brevis
Bithynia leachii
Clappia cahabensis
Coahuilix hubbsi
Cochliopina milleri
Colligyrus depressus
Floridobia helicogyra
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