113. PLEURONECTIDJE - ETROPUS. 839 



structure of the head. Anal spine obsolete, (-/.wr/.oz, dog like; 

 tongue.) 



1295. >. pacificus Lockiugton. 



Olive brown, with darker blotches; fins blackish ; blind side mo.re or 

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

 space a narrow, 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 fins 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 4; depth 3. D. 102; A. 85; Lat. 1. 140. 

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



(Glyptocephalus pacificus LocMngton, Scientific Press Suppl. i, 21, April, 1879: Glyplo- 

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



461. ETROPUS Jordan & Gilbert. 

 (Jordan & Gilbert, Proc. U. S. Nat. Mus. 1881, 3o4: type Etropus crossotns J. & G.) 



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

 compressed. Head small; mouth 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. Veutrals 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 apparently allied 

 to CUliaricMJiys, although the mouth is very small. (erpo<^ abdomen; 

 <r, foot; in allusion to the insertion of the ventrals.) 



1296. E. ci*osotus J. & G. 



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

 Teeth in lower jaw 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 4| depth 2. D. 80 ; A. 61 ; V. G ; Lat, 1. 68i 

 L. 5 inches. Coast of Louisiana and Texas to Mazatlau and Panama; 

 locally abundant. 



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



