532 PROCEEDINGS OF THE NATIONAL MUSEUM vol.86 



especially enlarged and not barbed or hooked. They are not com- 

 pressed. They bear no resemblance to the pecuhar glossohyal teeth 

 of the Scopelarchus anale as depicted by Parr (1929, fig. 4). Along 

 the full length of the premaxillary is a single series of minute recurved 

 teeth. These are so small that on the anterior two-thirds of the bone 

 they do not project through the skin. The teeth on the dentary are 

 similar to those shown by Parr (1929, fi.g. 2) for Scopelarchus anale. 

 On the holotype and the larger paratypes the teeth at the symphysis 

 are much reduced. On the palatine there is a double row of teeth. 

 The anterior three in the inside row are enlarged and have the same 

 shape as the fangs on the dentary. The other teeth grow progres- 

 sively smaller posteriorly. Exterior to and slightly anterior to each 

 of the teeth in this row, except the anterior fang, there is a smaller 

 tooth. These form the incomplete second row. There is a small 

 stout tooth on the outer angle of each side of the vomer. The teeth 

 on the dentary and palatine are depressible. Those on the glossohyal 

 and the vomer are not. 



The dorsal is inserted nearer to the insertion of the pectorals than 

 the origin of the anal. The fin is short; the rays are slight. The 

 pectoral fins are small and have fine rays. They are inserted obliquely 

 just above the articulation of the lower jaw and the quadrate, with 

 the upper ray midway between the ventral outline and the lateral line. 

 The pelvic fins are inserted slightly ahead of the dorsal fin. Their rays 

 are stout and broad; the fins are much longer and larger than the 

 pectorals. The anal is moderately long and high. The caudal fin 

 is long and distinctly forked. It consists of 11 or 12 short rays ex- 

 tending along the dorsal side of the caudal peduncle, 22 stout rays 

 forming the fin proper, and 11 to 13 short rays running along the 

 ventral edge of the caudal peduncle. The caudal peduncle is as long 

 as or longer than the length of the head. 



Remarks. — This species is evidently distributed widely in the Gulf 

 of Alaska. The holotype was taken in the middle of the Gulf, about 

 200 miles south of Cape St. Elias, the nearest land. The longest 

 paratype was captured southeast of Kodiak Island. The rest of the 

 paratypes were captured along the outer coast of southeastern Alaska 

 and British Columbia from the latitude of Cape Scott on Vancouver 

 Island to midway between Salisbury Sound and Cape Cross on Chich- 

 agof Island. AU the specimens were taken outside the 100-fathom 

 line over deep water. None of the specimens was taken in the upper 

 ("A") nets, 6 were taken in the middle ("B") nets, and 7 were cap- 

 tured by the lower ("C") nets. This indicates that the species lives 

 in a bathypelagic habitat. 



This species is differentiated from the other fishes of this relation- 

 ship under the discussion of the new genus. It is named in reference 

 to its striking dentition. 



