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1,156 littorinimorpha species
Somatogyrus strengi
Somatogyrus tenax
Somatogyrus tennesseensis
Somatogyrus virginicus
Somatogyrus wheeleri
Tryonia clathrata
Tryonia elata
Tryonia ericae
Tryonia gilae
Tryonia imitator
Tryonia quitobaquitae
Tryonia variegata
Trochita trochiformis
Nucleolaria granulata
Zebina tridentata
Simulamerelina hewa
Pusula solandri
Littoraria angulifera
Trivirostra corrugata
Gelagna succincta
Peasiella habei
Melanella acicula
Littorina arcana
Crucibulum spinosum
Terebellum terebellum
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