Jordan and Evermann, Fishes of North America. 2623 



all with bauds of fine scales, those on caudal especially broad; lateral 

 Hue with a broad arch in front, the cord of which is 3- in straight por- 

 tion. Color dusky brownish, with 2 conspicuous pairs of round black 

 spots narrowly edged with gray, the anterior pair about \ size of orbit, 

 the posterior larger than pupil; the anterior pair under beginning of pos- 

 terior third of dorsal, aud about halfway between lateral line and dorsal 

 and anal margins, respectively ; the posterior pair nearer outline of body 

 and about under the tenth before the last dorsal ray ; vertical fins obscurely 

 blotched with darker; ventral of eyed side with conspicuous black blotch 

 margined with white, occupying the distal portion of its inner 2 rays ; pec- 

 toral unmarked; membrane of gill cavity and peritoneum white. Two 

 specimens, each about 12 inches long, from the Gulf of California, taken 

 in 29 and 76 fathoms, at Albatross Stations 3014 and 3016. (Gilbert.) 

 -j four; o00aA/<o, eye, or eye-like spot.) 



Lioglossina tetrophthalmus, GILBERT, Proc. U. S. Nat. Mus. 1890, 122, Gulf of California. 

 (Coll. Dr. Gilbert.) 



1023. XYSTREURYS, Jordan & Gilbert. 



Xystreurys, JORDAN & GILBERT, Proc. U. S. Nat. Mus. 1880, 34 (liolepix). 



Body broad, covered with small smooth scales. Teeth rather small, uni- 

 serial and bluntly conical, unequal; no canines; caudal fin subsessile, the 

 caudal peduncle extremely short; skin of shoulder girdle with patches of 

 cup-shaped scales; lateral line with a strong anterior arch, no accessory 

 branch; vertebra about 37; gill rakers short and thick. This genus is 

 very close to Hippoylossina, differing chiefly in the subsessile caudal fin, 

 the smooth scales, and the peculiar, short, thick gill rakers. The typical 

 species, like some other Parific coast flounders, is almost indifferently 

 dextral or sinistral. (^vdrpor, raker; evpvg, wide, from the broad gill 

 rakers.) 



2990. XYSTREURYS LIOLEPIS, Jordan & Gilbert. 



HeadSf; depth If. D. 80; A. 62; scales 123. Vertebras 12 + 25=37. 

 Body elliptical ovate, broad and compressed, its curves regular; the pro- 

 file continuous with curve of back ; mouth small, very oblique, the lower 

 jaw included; maxillary reaching about to pupil, 2f in head; eyes rather 

 large, 4-|- in head, separated by a very narrow, blunt scaly ridge; teeth 

 small, conical, blunt, in a single row; those in lower jaw subequal, close 

 set; those in upper jaw more distant, decreasing in size backward; teeth 

 j|4rjf. Gill rakers 2 + 7, very short, broad, and strong, minutely serrate 

 on inner margin, about 7 below angle, the longest scarcely as long 

 us the eye. Scales small, oblong, cycloid, the smaller accessory scales 

 extremely numerous; lateral line without dorsal branch, with a broad 

 curve above pectorals; branchial arches and skin of the shoulder girdle 

 with small, cup-shaped, tubercular scales. Dorsal rather high, firm, low 

 in front, beginning just in advance of middle of pupil, highest near the 

 middle of the body ; caudal peduncle very short and deep, its depth 4 times 

 its length. Pectoral of eyed side falcate, usually much longer than head, 



