Jordan and Evcrmann. — Fishes of North America. 2623 



.all with bands of Hue scales, those on caudal especially broad; lateral 

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

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

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

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

 terior tliird of dorsal, and 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 iins obscurely 

 l)lotched with darker; ventral of eyed side with conspicuous black blotch 

 iiuxrgined 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, froni the Gulf of California, taken 

 in 29 and 76 fathoms, at Albatross Stations 3011 and 3016. (Gilbert.) 

 (Tsrpa-, four; 6(/>0aXjii6<;, eye, or eye-like spot.) 



lAoglossinatetrophfhalmus, Gilbert, Vroc.TJ.B. Nat. jSIus. 1890, 122, Gulf of California. 

 (Coll. Dr. Gilbert.) 



1023. XYSTREURYS, Jordan & Gilbert. 



Xi/streuryg, Jordan & Gilbert, Proc. V. S. Nat. Mils. 1880, 34 (llolejns). 



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-sbaped scales; lateral lino with a strong anterior arch, no accessory 

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

 very close to Hippofilossina, diliering chiefly in the subsessile caudal fin, 

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

 sjiecies, like some other Parific coast flounders, is almost indiflerently 

 dextral or sinistral. {i,v6rpov, xsikcr; fLipt'?, wide, from the broad gill 

 rakers.) 



2990. XYSTREURYS LIOLKPIS, Jordan & Gilbert. 



Head3i; depth Ig. D. 80; A. 62; scales 123. Vertebric 12 -f 2.5=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, 2| 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 jaAv more distant, decreasing in size backward; teeth 

 W^srfi- ^^^^ rakers 2 + 7, very short, broad, and strong, minutely serrate 

 on inner margin, about 7 1)elow angle, the longest scarcely I as long 

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

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

 curve above jiectorals; 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. 



