"VII. — North American Ophiuroidea. I. — Revision of certain Families and Genera of West Indian Ophiurans. II. — A Faunal Catalogue of the known Species of West Indian Ophiurans. By A. E. Verrill, Part I. Revision of certain Families and Genera of West Indian Ophiurans. The numerous shallow water Ophiurans of the West Indian faunal region have been pretty fully studied by several authors,* so that most of the species ai-e fairly well known, and many of them are to be found in most of the larger museums. Nevertheless there is no recent or fairly complete faunal list of the species. The deep-sea species are also very numerous. These have been collected in large numbers by scientific explorations carried on by the U. S. Coast Survey Steamer "Blake," under the supervision of Mr. Alexander Agassiz, and by earlier explorations, under the supervision of Mr. L. F. de Pourtales. A number of deep-sea species were also dredged, in the same region, by the " Challenger." All the U. S. Coast Survey collections and those made by the " Chal-lenger" were worked up and reported upon by Mr. Theodore Lyman in a number of important reports. f The large collections from this region made by the U. S. Fish Commission steamer "Albatross" were also studied by Mr. Lyman, but no report upon them has yet been published. During the present year the writer has published a report^ on a small but interesting collection obtained by a scientific expedition to *Lutken, Addit. ad Hist. Ophiur., Part II; Synop. gen. Opliiur. ver., 1869. Lyman, North Amer. Ophiuridis, 111. Catal. Mus. Comp. Zool., I. 1865. Ljvmgman, Ophiuroidea viv. hucasque cognita enumerat, Ofvers. Kgl. Veten-skaps-Akad. Forhandlingar, for 1866, 1867. t Bulletin of the Mus. Comp. Zoology, Vol. I, No. 10, p. 309, 1869 ; Vol. V, No. 9, p. 317, 1878 ; A^ol. X, No. 6, 1883 ; also Vol. V, No. 7, p. 67, 1878, and Vol. VI, No. 2, 1879 (Challenger Coll.). Illust. Catal. Mus. Comp. Zool., Vol. VI, 1871 ; Vol. VIII, No. II, 1875. :{: Report on the Ophiuroidea collected by the Bahama Exped., 1893, Nat. Hist. Bulletin, Univ. of Iowa, Vol. V, pp. 1-86, Plates i-viii, 1899. Trans. Conn. Acad., Vol. X. October, 1899. 21
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