PIMELODUS. 177 



the Boffri ; it is tlnis described in his notes : — 

 " This fish is found in the rivers of Demerara and 

 Essequibo, as well as those of Brazil. The body is 

 long, without scales, of a bluish black colour; the 

 belly whitish, finely spotted with black ; the head 

 compressed ; jaws equal ; teeth, a fine series, thickly 

 set in both jaws; cirrhi on the upper jaw long; 

 eyes placed near the middle of the head, oval, 

 bluish; nostrils double, — one pair on snout, the 

 other nearer the eye ; the tongue round and fleshy ; 

 opercles smooth; ventral fins at equal distances 

 from the pectoral and anal fins ; a small bony pro- 

 cess which the pectoral spine lies against when 

 closed ; adipose fin very large, lateral nearly straight. 

 Air-bag single, heart-shaped; the intestines form 

 several flexures ; milt double, thick, but not very 

 long. This fish will live for an hour after being 

 taken from the water ; it takes the hook at night, 

 baited with worms, and is an excellent fish; it 

 reaches the length of eighteen or twenty inches." 

 The native names are— Arawaak, Laukidi ; L. 

 Geral, Jandia. 



D. 7— P. 1/7— V. 6— A. 9— C. 18_Br. 8_Cin-hi 2/4— 

 Ribs 11 pairs — Vert. 45. 



Our naxt three figures will show species remark- 

 able for their spotted markings, and at the same 

 time presenting a considerable degree of beauty and 

 symmetry. 



