Metacrinus cyaneus Clark 1917

Clark 1917. New blastoids and brachiopods from the Rocky Mountains. Bigelow Bull Mus Comp Zool Harvard Coll, 61 1917: (361-380)

Clark 1916. Report on the sea-lilies, starfishes, brittle-stars and sea-urchins obtained by the F.I.S. "Endeavour" on the coasts of Queensland, New South Wales, Tasmania, Victoria, South Australia, and Western Australia. Commonwealth Austral Dept Trade & Cust Fisheries Sydney NSW 4((1)) 1916: (1-123)