THE STEGOCEPHALID AND AMPELISCID AMPHIPOD 

 CRUSTACEANS OF NEWFOUNDLAND, NOVA SCOTIA, 

 AND NEW BRUNSWICK IN THE UNITED STATES 

 NATIONAL MUSEIBI 



By Clarence R. Shoemaker 



Assistant Curator, Division of Murine Invertebrates, United States National 



Musetim 



The Stegoceplialidae are represented in the collection of the United 

 States National Museum by three genera comprising four species. 

 Stegocephalus infatus has for many years been known from the 

 coast of Labrador, the Gulf of St. Lawrence, and the New England 

 coast, so that its occurrence in the region under discussion was to be 

 expected. Phippsiella similis, described from the west coast of 

 Norway, now appears for the first time in the Western Hemisphere. 

 Phippsiella minima and Andaniella pectinata have been recorded 

 from the west coast of Greenland, but not heretofore directly from 

 the east coast of North America. 



Three genera of the family Ampeliscidae, Ampelisca, Byblis, and 

 Haploops, are represented in the amphipod fauna of this region. 

 A?}ipelisca macrocephala, A. eschrichtii, A. spinipes, Byhlis gai- 

 mardii. and HapJoops setosa have all been recorded previously from 

 the New England coast. Ampelisca aequicornis, A. latipes, A. am- 

 hlyops, A. gihha, and Haploops similis are now recorded for the 

 first time from the eastern coast of North America, and Ampelisca 

 typica makes its initial appearance in the Western Hemisphere. 



A form that superficially resembles Haploops tubicola and that 

 has been mistaken for that species, I have described as a new species, 

 Haploops spinosa. H. tubicola occurs in the Gulf of St. Lawrence, 

 but I have not observed it among any of the material in the National 

 Museum that was taken south of the gulf. 



Family STEGOCEPHALIDAE 



stegocephalus INFLATUS Kroyer 



1842. Stegocephalus inflattia Kroyeb, Naturh. Tidsskr., vol. 4, p. 150. 

 1891. Stegocephalus inflatus G. O. Saks, Crustacea of Norway, vol. 1, p. 198^ 

 1)1. 69. 



Location 47 steamer Speedwell, SE. 1/2 S. from Cape Sable about 

 22 miles, August 21, 1877, 59 fathoms, pebbles and sand ; 1 specimen. 



No. 2888.— Proceedings U. S. National Museum. Vol. 79, Art. 22. 



66549—31 1 1 



