Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico, by the United States Coast Survey steamer, "Blake," Lieutenant-Commander C. D. Sigsbee, U.S.N., commanding, H. Reports on the Echini by A. Agassiz; Crinoids, and Corals, by L. F. de Pourtales; and Ophiurans, by Theodore Lyman. Preceded by a bibliographical notice on the publications relating to the deep-sea investigations carried on by the United States Coast Survey. Bull. Mus. C. Z. v, 9 1878: pp. 181-238. 216 [Zoological Record Volume 15]