113. PLEURONECTID.E ETROPUS. 839 



structure of the head. Anal spine obsolete, (zyvuo?, dog like; Ylwaaa^ 

 tongue.) 



1293. O. pacificus Lockiugton. 



Olive brown, with darker blotches; fins blackish; blind side more or 

 less dusky. Body elongate, elliptical; snout not blunt; interorbital 

 space a uarrow, scaly ridge; eyes large, 3 in head; mouth very small; 

 teeth large and very broad, forming a continuous cutting edge on blind 

 side only of each jaw; about 10 teeth in lower jaw. Opercle above its 

 angle wholly adnate to shoulder-girdle. Dorsal and anal tins low. 

 Pectoral fins moderate, that of the colored side a little the longer, 

 about two-thirds length of head; ventrals very small. Body exces- 

 sively slimy in life. Head 4J; depth 2>\, D. 102; A. 85; Lat. 1. 140. 

 L. 12 inches. Alaska to Monterey; abundant in deep water. 



(Glyptoeephalus lyacificm Lockington, Scientific Press Suppl. i, 21, April, 1879; Ghjpto- 

 cephalus pacijicus Lockiugton, Proc. U. S. Nat. Mus. 1879.) 



46!.— ETROPUS Jordan & Gilbert. 

 (Jordan & Gilbert, Proc. U. S. Nat. Mus. 1881, 3i>4: type Etropus crossofiis J. »S: G.) 



Eyes and color on the left side. Body regularly oval, deep and 

 compressed. Head small; moutb very small, the teeth close-set, slen- 

 der and pointed, somewhat incurved, mostly on the blind side; no teeth 

 on vomer. Eyes small, separated by a narrow, scaleless ridge; margin 

 of preopercle free. "Ventrals free from anal, that of colored side in- 

 serted on ridge of abdomen, its base rather long. Dorsal tin beginning 

 above eye; caudal double truncate; anal without spine. Scales thin, 

 deciduous, ctenoid on left side, cycloid on blind side. Lateral line 

 simple, nearly straight. Size small. This genus is a])parently allied 

 to Citharichthys^ although the mouth is very small, {^'fo'-', abdomen; 

 TTou?, foot; in allusion to the insertion of the ventrals.) 



129G. E. crossotBis J. & G. 



Light brown, with some darker blotches; fins mottled and spotted. 

 Teeth in lower jsiw on both sides, in upper on blind side only. Eyes 

 large, separated by a narrow scaleless ridge, which extends above the 

 opercle; edge of preopercle and especially of opercle on blind side 

 fringed with white cilia. Caudal one-fourth longer than head; pectoral 

 of left side three-fifths head; ventral of blind side longest, inserted in 

 advance of the other. Head 4t; depth 2. D. 80; A. Gl ; Y. 0; Lat. 1. 08. 

 L. 5 inches. Coast of Louisiana and Texas to Mazatlan and Panama^ 

 locally abundant. 



(Jordan & Gilbert, Proc. U. S. Nat. Mus. 1881, 364; 1882, — .) 



