720 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



on each interorbital ridge; iiiterorbital space as wide as eye; sides 

 with three or four pale, well-defined, naked areas behind pectorals, the 

 two anterior much the largest; behind these a long naked strip along 

 the lateral line, colored like the rest of the body; first four spines of 

 dorsal elevated, f to f length of head; the fifth much shortened; mem- 

 brane deej^Iy notched between the fifth spine and the sixth, which is 

 longer than the one before it; ventrals as long as eye; pectorals reach- 

 ing much beyond front of anal; first rays of soft dorsal short; the 

 others gradually lengthened to near the last, the highest higher than 

 the dorsal spines; caudal longer than head. Head 3f; depth 3f. D. 

 V, 111-23; A. 20; P. 12; Lat. 1. 50. L. 6 inches. North Pacific, south 

 to San Francisco. 



{Tracliinus cirrhosus Pallas, Zoogr Ross.-Asiat. iii, 237, 1811 : Bhpslas trilobus C. & V. 

 iv, 375, 182'J; Giintlier, ii, 153; Steindacliuer, Iclitli. Beitriige, v, 128, 1876.) 



rtffl. Spiuons dorsal not emarginate ; no naked areas. 



1106. B. bilobtis Cuv. & Val. 



Olivaceous, paler below; dorsal region with 4-5 black bars, reaching 

 one-third the distance to the lateral line, and somewhat continued on 

 the tins; caudal with a black bar at base, otherwise plain; pectorals 

 and anal blotched with black. Body shorter and deeper than in B. 

 cirrhosus, with thicker caudal peduncle and heavier head, the bones 

 less firm; snout short, obtuse; interorbital space very wide, concave, 

 half wider than the small eye; short occipital ridges present, besides 

 several bluntish tubercles. Mouth broad, oblique, the maxillary reach- 

 ing pupil; teeth small, distant; barbels as in cirrhosus. Head and 

 body covered with prickles, larger and blunter than in cirrhosus; no 

 naked j)atches on body; fins less developed than in cirrhosus; first 

 five or six spines of dorsal subequal, the last three abruptly shorter; 

 ])ectorals longer and much broader than in cirrhosus, reaching seventh 

 anal ray; caudal short, much shorter than head. D. IX-21; A. 18; P. 

 16. Coasts of Alaska and Kamtschatka; the specimen here described 

 from Kodiak. 



(Cuv. & Val. iv, 379, 1829: Peropus hilohus Bennett, Beechey's Voy. Zool. Fish. 59; 

 Gliuther, ii, 153. ) 



3T9.— :^"AUTICHTHYS Girard. 

 (Girard, U. S. Pac. R. R. Surv. Fish. 1858, 74: type Blepsiaa oculofasciaius Girard.) 



Body rather elongate, compressed, but not elevated, the skin evenly 

 covered with short, close-set, villiform prickles. Head short, strongly 



