THE FISHES OF ALASKA. 



309 



Color in alcohol: Upper parts dark, mottled with darker irregular blotches and lighter areas; about 4 

 distinct dark vertical blotches, one under spinous dorsal. 2 under soft dorsal and 1 on caudal peduncle; 

 under parts yellowish-white, profusely covered with minute brown punctulations; spinous dorsal dusky, 

 each ray with 1 or 2 black spots, the eighth spine almosl entirely black, edge of I'm creamy white; soft 

 dorsal dusky, with numerous irregular black blotche.-. tin- ed<_'e somewhat creamy; anal pale, punctate 

 wiili dark; caudal yellowish-white, crossed by I or 5 irregular, dark, vertical bars; pectoral similar to 

 sofl dorsal; ventrals white. The numerous specimens examined -how but little variation, as may be 

 seen from an examination of the following table: 



Pig. 66. -Cottue chamberlain! Bvermann & Goldsborough, new species. Type. 



Variation ik the Type ash Cotypes op Cottus < mamiikiu.aini. 



•> No. mi. type; nos. 120-128, cotypes. 



This species seems to be related to ( 'ottus beldingi ami to < 'ottus spilotw. From the former il may be 

 distinguished by the much larger eye, the narrower interorbital, the blunter head, the fewer anal rays, 



and the coloration; from ( 'ottus spilotus it would seem to differ in the shorter anal, the more complete 

 lateral line, in coloration and in other respects. 



The collection contains 217 specimens, which we refer to this species. They vary in length from less 

 than 1 inch to 2.9 inches. The collector's label, which should have accompanied these specimens, 

 has been lost, but it is certain that they came from fresh water al boring. Alaska, and that they were 

 collected by Mr. F. M. Chamberlain in 1903. 



Type no. 57823, U. S. .National Museum, a specimen i no. 1 L9) 2.9 inches long, probably from boring, 

 Alaska; cotypes, several specimens no. 61052,U. S. National Museum; no. 52:50. Bureau of Fisheries; no- 

 20011, Stanford Univ. Mus. 



We take- pleasure in naming this species for our friend and associate, Mr. Fred. M. Chamberlain, 

 naturalist of the steamer Albatross, who collected the type. 



