Pseudosuccinea columella - American ribbed fluke snail; Length 1.0 cm; Originating from the Barranco de Masca, Tenerife, Canary Islands, Spain; Shell of own collection, therefore not geocoded. <br>Dorsal, lateral (right side), ventral, back, and front view. © H. Zell - CC BY-SA 3.0 - Wikimedia Commons
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