PIMELODVS PIRINAMPU. 183 



is caught Avith the hook and line, baited with flesh 

 or smaller fish." 



D. 7— P. 1/9— V. 6_A. 17— C. 40— Br. 9— Ribs, 16 pairs- 

 Vert. 44. 



PiMELoDus PiRiNAMPU, Sjjiv. — P. pirinampu, 

 Spiv^ tab. viii. p. 20. — Arawaak, Maripack ; L. 

 Geral, Mantopac. Schomh. Draicings, No. 6. — 

 There are a few discrepancies between the author 

 above quoted and our drawing and description ; 

 the number of fin-rays vary, as may be seen by 

 comparincj the formula at the end of the description ; 

 and the spine of the pectoral fin is represented as 

 serrated in Spix's figure, in ours it is smooth. — 

 " This fish is found in the rivers of Brazil, as well 

 as those of Guiana. The cranium hard, compressed ; 

 opercles striated, all the other gill-covering smooth ; 

 the eyes oval, blue, and dull ; nostrils near the 

 snout ; back high ; body nearly triang-ular at the 

 dorsal fin, rounding from thence to the tail, which 

 is forked ; dorsal fin large, adipose very long (arising 

 nearly at termination of first dorsal) ; pectoral, ven- 

 tral, ana], and caudal fins webbed with blue, the 

 latter spotted with vermilion (in the drawing, ver- 

 milion is the prevailing colour on all the lower fins). 

 Body bluish green, lighter on the belly, and dis- 

 playing there a rose-colour; the head is gTcenish 

 brown; the cirrhi are black, webbed with blue, 

 very large; hps are coloured lake; jaws equal, 

 teeth thickly set in both. The tongue flat and 

 fleshy ; the air-bag simple, heart-shaped. This fish 



