Thaisella chocolataThaisella chocolata is a species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.DescriptionThe length of the shell attains 77.7 mm.DistributionThis marine species is endemic to the west coast of South America:. The snail is found in the intertidal zone and is quite common on rocky shores, both in sheltered waters and on the open coast.