(of)Clark, A. H. (1911). The recent crinoids of the coasts of Africa. <em>Proceedings of the U.S. National Museum.</em> 40:1-51. (look up in IMIS) [details]
original description(of)Clark, A. H. (1911). The recent crinoids of the coasts of Africa. <em>Proceedings of the U.S. National Museum.</em> 40:1-51. (look up in IMIS) [details]
basis of recordClark, A. H. (1941). A monograph of the existing crinoids. 1(4a). <em>Bull. U. S. Natl. Mus.</em> 82:1-603, 61 pls.[details]