126 ICHTHYOLOGIA OHIENSIS 



77th Species. Black Catfish. Pimelodus melas. 

 Pimelode noir. 



Jaws nearly equal. Eyes round. Barbs unequal, 

 shorter than the head. Body entirely black, lateral 

 line straight. Anal fin with 20 rays. Tail nearly 

 truncate, entire. 



Silurus melas. Monogr. sp. 8. 



A rare species less than a foot long. Hardly pale 

 beneath. Dorsal fin 1 and 7. Found below the falls. 



78th Species. Yellow head Catfish. Pimelodus 

 xanthocephalus. Pimelode xanthocephale. 



Upper jaw longer. Barbs unequal shorter than 

 the head. Eyes round. Body iron grey, with the 

 whole or part of the head yellow. Belly white. 

 Lateral line straight. Anal fin with 22 rays. Tail 

 entirely truncate. 



Silurus xanthrocephalus. Monogr. sp. 10. 



About a foot long. In the Ohio, Kentucky, &c. 

 Head very large, often entirely yellow, or only for- 

 ward, or covered with yellow patches. Iris white. 

 Fins fleshy redish. The dorsal with 1 and 6 rays, 

 caudal 24. Good food. 



4th Section. Ilictis. Tail entire, eyes elliptical. 

 Nine abdominal rays. Dorsal fins submedial. Pec- 

 toral fins with one fiat spine serrated outwards, and 

 nine rays. Lower jaw longer. 



79th Species. Mud Catfish. Pimelodus limosus. 

 Pimelode bourbeux. 



Lower jaw longer. Barbs black, the lateral ones 

 reaching the pectoral fins. Body fulvous, variegated 

 or clouded with black, belly grey. No lateral line. 

 Anal fin with 15 rays. Tail entire oval obtuse. 



Silurus limosus. Monog. sp. 11. 



[II. 361] A very singular species, differing from 



