Different morphs of Umbonium vestiarium (Gastropod) from the Bay of Bengal, Bangladesh coastal zone

Abstract

As ecologically and economically, marine gastropod mollusca are highly significant in the benthic ecosystems. Among marine gastropods, Umbonium vestiarium (Linnaeus, 1758) is a key stone species in marine ecosystems. Adult Umbonium vestiarium from coastal areas in Bangladesh including Cox’s Bazar, Sonadia and the St. Martin’s Islands typically range from 1-2 cm, and exhibit extensive colour polymorphism.