Vol. XXIX, pp. 7-8 January 25, 1916 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON PRODROME OF A REVISION OF THE CHRYSODOMOID WHELKS OF THE BOREAL AND ARCTIC REGIONS. BY WILLIAM H. DALL. The following revision of the boreal and arctic Chrysodomoid whelks results from a study of the collection from the north Pacific now contained in the National Museum and brought together from many sources. The full report on the group will be more or less delayed, but will contain the data upon which this revision is founded, in-cluding new anatomical and other details. Family BUCCINID.E. Genus Chrysodomus Swainson, LS-10. Type Murex antiqutis Gmelin. Britain. Section Sulcosipho Dall, nov. Type Chrysodomus tabulatus Baird. Puget Sound. Subgenus Barbitonia Dall, nov. Type Fusus arthriticus Bernardi. Japan. Genus Searlesia Harmer, 1914. T^pe Trophon costifer S. ^yood. British Crag. (Recent analogue Buccinum dirum Reeve. Puget Sound.) Genus Ecphora Conrad, 1843. Type Fusus quadricostatus Say. Miocene, Maryland. ?Genus Stenomphalus Sandberger, 1853. Type Fusus cancellatus (Thomae) Sandberger. German Miocene. Genua Colus (Bolten, 1798) Dall, restr. 1906. Type Murex islandicus Gmelin. Iceland. Section Latisipho Dall, nov. Type Chrysodomus hypolispus Dall. Bering Sea. 2— Proc. Biol. Soc. Wash.. Vol. XXIX. 1916. l7)
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