420 FISHES. ABDOMINALES. 



P. quadrimaculatus, Cuv. Body brown, shading to violet ; thorax 

 with four black spots on each side ; belly silvery ; fins yellow ; 

 cirri six, the two upper very long ; nine rays in the anal fin. 6 

 inches long. Inhabits rivers of S. America. Block, pi. 368. 



P. galeatus, Cuv. Head short, broad, enveloped in a plate with 

 angular figures ; back bluish ; sides and belly gray ; fins brown- 

 ish ; twenty-four rays in the anal fin. 8 or 10 inches long. In- 

 habits S. American rivers. Block, pi. 369. 



Gen. 61. BAGBUS, Cuv. 



Teeth of the upper jaw disposed in two transverse and parallel 

 bands, one intermaxillary, the other on the vomer ; cranium 

 smooth ; nuchal plate small ; two dorsal fins, the second adi- 

 pose. 



B. Docmac, Cuv. (Silurus, Lin.) Body gray above, whitish be- 

 neath ; mouth with eight cirri, the exterior ones of the upper lip 

 half the length of the body ; first ray of dorsal and anal fins long 

 and serrated ; ten rays in the anal fin. 3 feet long. Inhabits the 

 Nile. Shaw, v. 26. 



B. Bajad, Cuv. (Silurus, Lin.) Head obtuse, depressed, with a 

 depression on each side before the eyes ; cirri eight, the exterior 

 ones on the upper lip very long ; twelve rays in the anal fin. 1 

 foot long. Inhabits the Nile. Shaw, v. 27- 



B. vulgaris, (Silurus Bagre, Lin.) Head flat, rounded before, with 

 an oblong hollow above ; body compressed, greenish, with silvery 

 abdomen; four cirri, those of the upper lip flat and long, the lower 

 short and white; first ray of the dorsal and pectoral fins long and 

 filamentous. 12 to 18 inches long. Inhabits Indian rivers. 

 Block, pL 365. 



* Snout long and flattened. 



B.Jasciatus, Cuv. (Silurus, Bloch.) Head very long, broad, and 

 rounded at the extremity ; body banded with numerous trans- 

 verse dusky stripes ; cirri six, two on the upper lip, four below, 

 all longer than the head. 12 to 15 inches long. Inhabits S. Ame- 

 rican rivers. Bloch, pi. 366. 



Gen. 62. AGENEIORUS, Lacepede. Silurus, Bloch. 

 Head depressed, covered with large hard plates or a viscid 

 skin ; mouth terminal and without cirri ; two dorsal fins, the 

 second adipose. 



A. militaris, Cuv. Body olive-coloured ; head large, flat, with two 

 serrated bony spines near the nostrils ; eyes large, the iris red ; 

 first ray of the dorsal fin very large, strong, and sharply serrated ; 

 lateral line flexuous ; tail slightly bilobate. 12 to 18 inches long. 

 Inhabits Indian rivers. Block, pi. 362. 



A. inermis, Cuv. Head smooth and without horns ; body greenish, 

 with brownish spots ; dorsal, pectoral, and ventral fins brown, the 



