PLEURONECTID^. — LXXXIX. 167 



rings enclosing areas of ground color; two black blotches along 

 lateral line; fins spotted; no blue markings. Head 4; depth 1^. 

 D. 85 to 90. A. G5. Lat. 1. 72 to 78. L. 12. Variable. L. I. to 

 Brazil, abundant S. {PL nehularis Jordan & Gilbert.) 



232. CITHARICHTHYS Bleeker. (Citharus, an allied genus; 



Ix^vs, fish.) 



469. C. spilopterus Giinther. Maxillary 2i in head; eye 

 small, 5 to 6 ; snout short, forming an angle with preorbital; teeth 

 small, those in front larger. Head 3^; depth 2|. D. 75 to 80. 

 A. 58 to 61. Lat. 1. 43 to 45. L. 6. N. J. to Brazil and Panama, 

 a little flounder very common on sandy shores. (Related species 

 occur in deeper water, in the Gulf stream.) (o-ttiXos, spot ; Trrepov, 

 fin.) 



233. ETROPUS Jordan & Gilbert, (^rpov, abdomen ; novs, foot.) 

 a. Body very deep, the depth more than half length. 



470. E. crossotus Jordan & Gilbert. Maxillary 4 in head; 

 eye 3|. Olive-brown with darker blotches; fins finely speckled. 

 Head 4|; depth If to 2. D. 76 to 85, A. 56 to 67. Lat. 1. 42 to 

 48. L. 5. Warm seas, N. to Va. ; may vary into the next. 

 {KpoaawTos, fringed.) 



aa. Body more elongate, the depth less than half length. 



471. E. microstomus (Gill). Maxillary 4^ ; eye 3 to 3-^ in 

 head. Grayish, with small dark blotches ; two dark spots at base 

 C. ; fins specked. Head 4 ; depth 21. D. 77 to 78. A. 57 to 61. 

 Lat. 1. 38 to 41. N. J. to Fla., scarce, (fimpos, small ; aropa, 

 mouth.) 



234. LIMANDA Gottsche. (Old name.) 



472. L. ferruginea (Storer). Rusty Dab. Teeth conical, 

 close-set, 11 -|-30 in lower jaw; snout abruptly projecting, leaving 

 an angle at its base ; interocular ridge high and narrow, prolonged 

 and rugose above opercle. Brownish, with rusty spots ; blind side 

 yellow. Head 4 ; depth 2f D. 85. A. 62. Lat. 1. 100. L. 2 

 feet. N. Y. to Labrador. (Lat., rusty.) 



235. PSEUDOPLEURONECTES Bleeker. (^evdris, false; 

 Pleuro7iectes.) 



473. P. americanus (Walbaum). Winter Flounder. Flat- 

 fish. Body elliptical ; interorbital space broad, convex, scaly; a 

 low ridge above opercle. Dark rusty brown, obscurely mottled; 

 fins plain. Head 4 ; depth 2^. D. 65. A. 48. Lat. 1. 83. L. 18. 

 Labrador to Chesapeake Bay, common. 



236. LIOPSETTA Gill. (Xeloy, smooth; ^//crra, flounder.) 



474. L. glacialis (Pallas). Eel-back Flounder. A coarse 

 rugose ridge above opercle ; scales in males ctenoid on both sides, 



