crassus Müller & Troschel, 1842, Echinaster
Echinaster crassus Müller & Troschel, 1842: 23 . — Clark 1996: 223.
Othilia purpureus Gray, 1840: 282, n. syn.
CURRENT STATUS. — Echinaster purpureus (Gray, 1840) .
TYPE MATERIAL. — Unknown origin • holotype; MNHN-IE-2014-279.
REMARK E. crassus inhabits Indian Seas according to Dujardin & Hupé (1862). The species shares all the characteristics of the common Indian Ocean species Echinaster purpureus, having a reticulated skeleton and abactinal plates arranged in longitudinal series.