31 CYPRINID^E - TRYCHERODON 247 



nearly over veutrals. Anal basis short. Lateral line complete. Intes- 

 tinal canal short. Peritoneum white. Small, (oipuxoilto, to feed daintily; 



s, tOOth.) 



413. O. emiliw Hay. 



Body rather elongate, moderately compressed, not elevated. Head 

 short, slender. Muzzle blunt and rounded. Mouth very small and very 

 oblique, smaller than in any other of our CyprinidoB, with scarcely any 

 lateral cleft ; its size, when opened wide, less than that of the eye. Man- 

 dible short and .deep, strongly curved, jaws equal. Eye longer than 

 snout, 3 in head. Dorsal beginning over posterior rays of veutrals, nearer 

 snout than base of caudal. Pectoral very small, not reaching ventrals, 

 the latter to anal. Caudal peduncle long and slender. Anal short and 

 deep. Breast naked; 16 large scales before dorsal. Yellowish; sides 

 silvery; scales above dark-edged; a dark lateral band from snout to 

 caudal, above and below which are series of black dots; anterior rays 

 of dorsal dark; sometimes a black spot on the posterior rays. D. 9; 

 A. 8; scales 5-40-3; teeth 5-5, serrate. Eastern Mississippi. 



(Hay, Proc. U. S. Nat. Mus. 1880, 507.) 



1O6. TRVCHEROD01V Forbes. 



(Forbes, MSS. gen. nov. : type TrycJierodon megalops Forbes.) 



Pharyugeal teeth in one row, 5-5 or 5-0, strongly hooked, deeply 

 creuate, without masticatory surface. Lateral line imperfect. Dorsal 

 over ventrals. Intestine shorter than head and body. Peritoneum pale. 

 Thorax naked almost to ventrals. Mouth terminal, upper jaw protrac- 

 tile. No barbels. ( -poy^p a ?, ragged; 6Siuv, tooth.) 



414. T. mcgalops Forbes, spec. nov. 



"A small, fusiform species, with a small, terminal, oblique mouth, a 

 very large eye, an imperfect lateral line, a narrow black lateral stripe, 

 a partly naked breast, and large fins. The dorsal has a large dusky 

 black blotch on the front rays. The depth is contained from 4 to 5 

 times in the length without caudal ; the head 4 to 5 times. The eye 

 is longer than the snout, and goes but 2f times in the head. Its verti- 

 cal diameter equals the interorbital space. The mandible scarcely 

 reaches a vertical from the anterior border of the nostril, and falls far 

 short of the orbit. The lateral line is variously imperfect ; sometimes 

 present only on the first 4 or 5 scales, and sometimes extending, 

 with numerous interruptions, to the middle of the caudal peduncle. It 



