838 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
short; its blind side with many excavations and inncons cavities in the 
skull, mandible, and preoiiercle. Month v.ery small ; teeth moderate, 
incisor-like, broad, equal, close-set, in a single series; no teeth on 
vomer or palatines. Gill-rakers short, weak. Lower pharyugeals 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 present. Yertebrte in increased 
number. JNortheru seas. ijXu-KTtjq^ sculptured; /.upaK-q^ head.) 
1293. O. cyiiojflossus (Linn.) Gill. — Crauj-flounder. 
Grayish brown; membranes of the fins with dark spots; iiectoral 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. 1. 
125. North Atlantic, ou both sides; abundant in deep water north- 
ward. 
{ Pleuronectes cynoglossus Linn. Syst. Nat. i, 259, 1758: Glyptocephalus acadianus Gill, 
Proc. Acad. Nat. Sci. Pliila. 1873, 361: Pleuronectes cynoyJossns Giintlier, iv, 449: Pleu- 
ronectes elongatus Giintber, iv, 450: Collett, Norske Nord-Havs. Exp. 260.) 
1294. O. zaciliriis Lockington. 
Uniform brownish, tins darker; blind side everywhere dusted with 
dark points. Body elongate; snout very blunt; interorbital space a 
very narrow, scalj^ 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 31 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 
If; depth 3. D. 91 to 1013; A. 79 to 89; Lat. 1. 138. L. 15 inches. Coast 
of California; in deep water. 
(Lockiiigtou, Proc. U. S. Nat. Mus. 1879, 88.) 
460.— CYNICOGI^OSSUS Bonaparte. 
{Microstonms Gottsche, preoccupied by Microstoma: Brachyprosopon Bleeker.) 
(Bonaparte, Fauna Italica, 1837, fasc. xix: type Pleuronectes microstomus Don.) 
This genus agrees with Glyptoceplialm in the elongate body, long 
fins, and numerous vertebrje, differing in the absence of the cavernous 
