Colochirus is a genus of sea cucumbers in the family Cucumariidae.
Species The World Register of Marine Species lists the following species: Colochirus crassus Ekman, 1918 Colochirus cylindricus Semper, 1867 Colochirus pusillus Helfer, 1912 Colochirus quadrangularis Troschel, 1846 Colochirus robustus Östergren, 1898
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