50 



ral reddishvthe caudal pale at the end and unspotted, the dorsal 

 •with nine rays and a large black spot at the anterior base, anal 

 •with nine rays. 



Length from six to eight inches, not uncommon in the creeks 

 of Kentucky, Sec. Vulgar names Chub, Big-mouth, and Big- 

 head. It has really the larges head and mouth of this trihe. 

 Iris redish iridescent. Pectoral fins with 15 rays trapezoidal 

 and short, abdominal fins rounded, dorsal fin begmning over 

 them, spot round. Tail with 20 rays. 



45th Species. Warty Chubby. Semotilus difilemia. Sem- 



I 

 oti e verruqueux. 



Diameter one sixth of total length: olivaceous brown with 

 gold shades above, silvery beneath: lateral line double, the an*- 

 terior and lov/er curved upwards at the base, reaching to the ab- 

 dominal fins, the posterior and upper straight from the pectoraL 

 fins to the tail: fins red, a spot at the base of the dorsal and cau- 

 dal, and many dots over them. Dorsal with nine rays; the anal 

 with eight. 



Length from three to four inches, oiten called Minny or Red- 

 fin. Observed in the Kentucky river near Estill. The male 

 fish has a larger mouth than the female and some black v/arts 

 on the head. Fulvous brown on the head. Iris large, golden, 

 and white. Some black dots on the dorsal and caudal fins: tke 

 caudal spot is on the tail, and the dorsal at the anterior base; 

 they are small and round. The pectoral fins do not^reach the 

 abdominal fins; they have 18 rays: the tail has 24. 



XVIII Genus. Fallfish. Rutilus. Rutile. 



Difference from Minnilus, Vent posterior nearer to the tail. 

 Abdominal fins with nine rays. Mouth large and with lips. 

 Scales large. 



I call this genus Rutilus^ in the supposition that the CijJirU 

 mis rutilus may be the type of it; if it should be otherwise, it 

 imav be called Plargyrus. 



46th Species. Silveiiside Fallfish. Rutilus fdarg-yi-us, 

 Rutile plargyre. 



Diameter one fifth of total length: silvery, back with the dor- 

 sal, pectorJI^ and caudal fins olivaceous: lateral line curved 



