726 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



383.— BRACHYOPSIS Gill. 

 • {^ Lcjitagonus Gill.) 



(Gill, Proc. Acad. Nat. Sci. Phila. 1861, 259: type Agon us rostratus Tilesius.) 



Body elongate, fusiform, low, covered with spinous plates. Head de- 

 pressed, spinous; mouth comparatively large, very oblique, the lower 

 jaw projecting; jaws, vomer, and palatines with small teeth; gill-mem- 

 branes united, free from the isthmus; barbels few; spinous dorsal well 

 developed; ventral rays 1,2. (fijjayuq^ short; o^nq^ face.) 



1112. B. rostratus (Tilesius) Gill. 



Body more fusiform than in other species of this genus, very robust 



in front of the middle, tapering to the slender tail. Head triangular 



and pointed, as seen from above, the mouth quite narrow; eyes small, 



well forward; head considerably depressed, snout without spine; a 



short flap at angle of mouth ; scales not very rough ; gill-membranes 



free from the isthmus; ventrals quite short; breast with a median row 



of large raised convex plates; a row" of similar plates bordering the 



edge of the gill-opening, the three series forming a /^-shaped figure, 



the interstices filled with very small plates. "D. VIlI-8; A. 13"; Lat. 



1. 30. L. 8 inches. Alaska and Kamtschatka; here described from 



specimens lately obtained by Dr. Bean. 



{Agonus rostratus Tiles. M6ui. Acad. Petersb. iv, pi. 14 : Phalangistes fusiformis Pj^Uas, 

 Zoogr. Ross.-Asiat. iii, 116: Agonus rostratus Giintlier, ii, 214.) 



1113. B. verrucosus Lockingtou. 



Olivaceous, banded with darker; pectorals whitish at base, with a 

 dark spot above and below; terminal portion dark; ventrals bright 

 orange-yellow with a large black spot inside of the first ray, and two 

 small spots near the tip in i , the fin plain in 9 . Body elongate, de- 

 pressed; mandible narrow, not one-fourth as deep as long; maxillary 

 reaching slightly beyond front of e.ye, with a short barbel at tip; length 

 of b.irbel ^ that of eye; ridges on head all rough; supraocular ridges 

 serrate ; occipital and postorbital ridges without spines ; preorbital with 

 about six spines ; suborbital stay with two ; preopercle with two spines 

 near its angle; opercle without spines; membrane of mandible with 

 small stellate tubercles; plates on body rough, each with a keel termi- 

 nating in a strong spine; the dorsal plates with small prickles also; 

 breast and base of pectoral fin with large, striate, wart-like tubercles; 

 plates of ventral series tubercular anteriorly; upper lateral series of 



