\ THE PISHES OF BERING SEA. 439 



Family THYMALLID^E. 



31. Thymallus signifer Richardson. 



Recorded by Dr. Bean from Nulato and St. Michael. 



Family ARGENTINID^E. 



32. Mallotus villosus (Mtiller). Capelin. 



Two females were taken at Captains Harbor, Unalaska, where it is common.^ 

 The young were very abundant around the island and were marked by their trans- 

 lucent body, pointed snout, and very long adipose fln. Great numbers were seen at 

 Sitka at the end of September running on the shore at high tide and dying there. 



It is recorded by Dr. Bean from St. Michael, Cape Lisburne, Point Belcher, and 

 Plover Bay, and by Stejneger from Bering Island. 



33. Thaleichtliys pacificus Richardson. Eulachonj Candleflsh. 



Recorded from Nushagah River by Dr. Gilbert. 



34. Osmerus albatrossis Jordan and Gilbert. Kadiak smelt: New species. (Plate XLVI. ) 



Length, 8 inches; head, 4J in length; depth, SJ; dorsal rays, 2-10; anal, 1-20; 

 scales, 75; maxillary, 2^„ in head; eye, 5J; snout, 3f ; mandible, 2; pectoi'als, IJ; 



ventrals, If; dorsal, 1| ; base of anal as long as head; caudal. If. 



Body elongate, moderately compressed. Back elevated at nape, so that anterior 

 profile is somewhat depressed between and behind eyes. Interorbital space 3§ of 

 head. Mouth large; lower jaw heavy, strongly projecting. Opercle with concentric 

 strisB. Pectorals moderate. Ventrals long. Dorsal high. Anal fin low, very long; 

 its longest ray 2| in head. Caudal moderate, well forked. Ventrals inserted before 

 dorsal. Scales small, deciduous; those on back still smaller. Lateral line distinct. 

 Gill rakers long and slender, about 12 below angle of arch ; longest about as long as 

 eye. Tongue with moderate teeth, the anterior two to four small hooked canines. 

 Upper jaw with small sharp teeth similar to those in lower jaw, none of them canine- 

 like. Small teeth on palatines and pterygoids. Vomer with two very small canines 

 scarcely fang-like. Color bluish above with bright reflections. Scales margined with 

 dark points. Sides silvery with golden and coppery luster. Inside of gill openings 

 dusky. Fins white, somewhat dotted. 



Two specimens caught in the upward haul of a dredge in Shelikof Straits, north 

 of Karluk, Kadiak Island, Alaska, Albatross station No. 3675. The depth of the 

 dredge haul was 109 fathoms, but these fishes were no doubt taken from near the 

 surface. One specimen is 8, the other about 7 inches in length. 



The species is allied to Osmerus dentex, the rainbow smelt, but differs in the 

 extremely long anal and in the very weak vomerine and lingual canines. 



35. Osmerus dentez Steindaohner. Rainbow smelt. 



One specimen from Petropaulski. Head, 4|; depth, if-g ; dorsal, 1, 10; anal, 1, M; 

 lateral line, 68. It seems not to differ from Alaskan specimens. 



It was also obtained at Petropaulski by Stejneger and Grebnitzki. It is found 

 on the east shore of Bering Sea from Bristol Bay northward. 



Originally described from Decastris Bay. It has been recorded by Dr. Bean from 

 St. Michael and Port Clarence, and by Dr. Gilbert from Naknek and Nushagak 

 rivers, and in Bristol Bay. 



