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1,156 littorinimorpha species
Pseudodiala acuta
Juturnia tularosae
Juturnia coahuilae
Juturnia kosteri
Lyogyrus latus
Talostolida pellucens
Pomatiopsis binneyi
Fontigens bottimeri
Fontigens cryptica
Fontigens nickliniana
Fontigens proserpina
Fontigens tartarea
Gillia altilis
Notocochlis cernica
Notogillia sathon
Notogillia wetherbyi
Pomatiopsis hinkleyi
Probythinella emarginata
Pseudotryonia alamosae
Pseudotryonia brevissima
Pseudotryonia grahamae
Pyrgophorus platyrachis
Pyrgulopsis anguina
Pyrgulopsis arizonae
Pyrgulopsis bedfordensis
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