818 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



1259. C. arctifrons Goode. 



Light brown. Body comparatively elongate. Scales cycloid, de- 

 ciduous. Lateral line sharply defined, straight. Eye 4 in head; inter- 

 orbital space very narrow, its width 4 in snout; maxillary 3.J in head. 

 Dorsal fin beginning above front of upper eye, its greatest height 

 more than half the length of the head; anal beginning below axil of 

 pectoral; caudal triangular, subsessile, as long as head; rays of ver- 

 tical fins all much exserted; pectorals inserted very low, that of the 

 colored side being twice the length of the other. Head 4; depth 2i. 

 I). 83; A. 07; P. 10 (left), 7 (right); Lat, 1. 40. L. 6 inches. Gulf 

 Stream, off the coast of Rhode Island; abundant. (Goode.) 



(Goode, Proc. U. S. Nat. Mus. 1880, 341.) 



12 CO. C. iiBiicoreiis Goode. 



Ashy gray, with dark lateral line; eyes black. Body comparatively 

 deep, its greatest height over the pectorals. Scales thin, deciduous. 

 Eye 3 in head, equal to snout, and more than twice the interorbital 

 space, which has a strong ridge; maxillary less than half length of 

 head; teeth minute, close-set, in a single series, stronger on the blind 

 side. A strong, sharp spine on the snout at the anterior termination 

 of the ridge at lower margin of upper eye. Highest rays of dorsal 

 half length of head; caudal pointed, triangular, subsessile; pectoral 

 of left side twice as long as the eye, not half longer than right pec- 

 toral. Head 4; depth 2. D. 74; A. CO; P. 4 (right), 10 (left); Lat. 1. 

 40. L. 3 inches. Gulf Stream, off the coast of Khode Island. (Goode.) 



(Goode, Proc. U. S. Nat. Mus. 1880, 342.) 



451. HIPPOGL.OSSUS Cuvier. 



Halibut. 



uvicr, Ri'<r]ir Aniin. ii, 1H17: type Pleuronectes Mppogloseue Ij.) 

 Kves and color on the right side. Form oblong, not strongly com- 

 pressed. Month wide, oblique; teeth in the. upper jaw in two series, 

 those below in one; anterior teeth in upper jaw, and lateral teeth in 

 lower, si ron-; no teeth on vouier or palatines; lower pharyngeal teeth 

 in two rows. Dorsal tin beginning above the eye, its middle rays ele- 

 vated, the posterior rays of dorsal and anal bilid; caudal tin lunate; 

 ventral lins both lateral. Scales very small, cycloid; lateral line with 

 a strong curve in front. (1 ill-rakers few, short, compressed, wide-set. 

 Vertebra- 1C + 34. Largest of the llounders; the single species abound- 



