838 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



short; its blind side with many excavations and mucous cavities in the 

 skull, mandible, and ijreopercle. Mouth very small 5 teeth moderate, 

 incisor-like, broad, equal, close-set, in a single series; no teeth on 

 vomer or palatines. Gill-rakers short, weak. Lower pharyngeals nar- 

 row, with one or two rows of conical teeth. Lateral line nearly 

 straight, simple; scales very small, smooth; dorsal and anal very long, 

 there being more than 90 rays in the dorsal and more than 80 in the 

 anal; caudal fin rounded; anal spine i)resent. Vertebrce in increased 

 number. Northern seas. {yXuTzrdq, sculptured; y.sfolr^, head.) 



1393. Cr. cynog;losstiS (Linn.) Gill. — Craig-flounder. 



Grayish brown; membranes of the fins with dark spots; pectoral of 

 the colored side dark, about half as long as the head. Upper jaw with 

 about 30 teeth; eyes large, separated by a narrow, scaly ridge; opercle 

 adnate to shoulder-girdle for a short distance only. Pectorals very 

 short, not falcate, that of right side about half length of head. Head 

 5 in length; depth 2|. D. 105 (101 to 112); A. 95 (87 to 99). Lat. I. 

 125. North Atlantic, on both sides; abundant in deep water north- 

 ward. 



{Pleuroneetes eynoglossus Linn. Syst. Nat. i, 259, 1758: Glyptocephalus acadiamis GUI, 

 Proc. Acad. Nat. Sci. Phila. 1873, 361: Fleuronectes ci/noglossiis Giintlier, iv, 449: Fleu- 

 rortectes elongatus Giiuther, iv, 450: Collett, Norske Nord-Havs. Exp. 260.) 



1294. O. zacMrus Lockington. 



Uniform brownish, fins darker; blind side everywhere dusted with 

 dark points. Body elongate; snout very blunt; interorbital space a 

 very narrow, scaly ridge; mouth somewhat twisted toward the blind 

 side; teeth on both sides of jaws, broad and compressed, in a single 

 row, forming a blunt, continuous edge; about 34 in the lower jaw. 

 Eyes very large, 3f in head. Opercle nearly free from shoulder-girdle. 

 Pectoral of the colored side falcate, longer than the head, more than 

 twice as long as the pectoral of the blind side. Body not slimy. Head 

 4f ; depth 3. D. 94 to lOG; A. 79 to 89; Lat. 1. 138. L. 15 inches. Coast 

 of California; in deep water. 



(Locjiington, Proc. U. S. Nat. Mus. 1879, 88.) 



460.— CYWICOGLOSSUS Bonaparte. 

 (Mierosiomii8 Gottscbe, preoccupied by Microstoma: Brachyprosopon Bleeker.) 

 (Bonaparte, Fanna Italica, 1837, fasc. xix: type Pleuronectes microstomus Don.) 



This genus agrees with Glyptocephalus in the elongate body, long 

 fins, and numerous vertebrse, differing in the absence of the cavernous 



