Morula echinata

Morula echinata, common name the prickled-armed ricinula, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

Description
The length of the shell varies between 7 mm and 10 mm.

Distribution
This marine species occurs in the tropical Indo-West Pacific; also off Taiwan and Australia (Queensland).