CYPBriS!HJja.-H3vin. 299 



tad flattish above; mouth little oblique; greenish, sides 

 aden silvery; D. I, 8; A. I, 8; lat. 1. 38. Ohio Valley. 



'3. E. leucibda, (Cope) Jor. Head 4^ in length; eye 

 oderate, 3^ in head; olive, scales above dark-edged; 

 ies silvery with a purple band; muzzle and base of 

 )rsal red in males; a black spot at base of caudal fin; 

 . I, 8; A. I, 8; lat. 1. 39. Tennessee River. 



//. ER ICY MB A, Cope. Ehictmbas. 

 1. E. buocata, Cope. Silver - MotrraED T)acb. 

 longate; depth nearly 5 in length; head 4; eye large, 

 in Bead; olivaceous above, sides brilliantly silvery, a 

 irrow vertebral line, and a lateral chain of brown dots; 

 jper jaw rather large, its profile angulated; mucous 

 lannels in lower jaw very conspicuous; D. I, 8; A. I, 8; 

 t. 1. 33; L. 5. Ohio Valley, Penn. to Kentucky, 

 id Illinois, abundant. A beautiful little fish singularly 

 stinguished from all our other species by the cavernous 

 mes of the head. 



12. PHENACOBIUS, Cope. Phbnacobies. 

 (=Sarcidium, Cope.) 



1. P. uranops. Cope. Head 4|- in length; body very 

 ng and slender, nearly cylindric; isthmus very wide; 

 lest naked; eyes large, high up, 3^ in head; depth 6^; 

 3S very thick, tuberculate; pale, a darker lateral streak; 

 . I, 8; A. I, 7; lat. 1. 60. Tennessee R. 



2. P. ferefu/us. Cope. Head=depth, 4i in length; 

 rm stouter than in the preceding; chest scaled; lips 

 icate; a dusky lateral band; D. I, 8; A. I, 7; lat. 1. 43. 

 Teams of W. Va. 



•B. P. seopifBPUS, (Cope) Jor. Form comparatively 

 out; depth 4 in length; head not laxge^ 4f la length; 



