truncated mangrove snail

Cerithidea decollata, common name the truncated mangrove snail, is a species of sea snail, a marine gastropod mollusc in the family Potamididae. Description Adults have a thick, approximately 3 cm long shell, with 5 whorls and around 20 axial ribs on each whirl. A distinguishing characteristic of adults is the broken-off tip of the shell, although this feature can be difficult to discern in some individuals.

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