original description
Bell, F. J. (1881). Account of the Echinodermata collected during the Survey of H.M.S. "Alert" in the Straits of Magellan and on the Coast of Patagonia. <i>Proceedings of the Zoological Society of London</i>. p. 87-101, p. VIII & IX., available online at https://www.biodiversitylibrary.org/page/30759196
page(s): 95 [details]
From editor or global species database
Identification This entry is for Calliderma grayi Bell 1881, NOT for the species of O. grayi Bell 1893 which is a syonym of O. penicillatus according to Fisher (1940) [details]