EIGENMANN: THE FRESHWATER FISHES OF BRITISH GUIANA 



19 



f38. Anodus notatus Schomburgk, p. 218, pi. 15. 

 f39. Serrasalmo piranha Spix, p. 221, pi. 16. 



*40. Serrasalmo stagnatilis Schomburgk, p. 222. 

 ?41. Serrasalmo punctatus Schomburgk, p. 223, 



pi. 17. 

 ?42. Serrasalmo ? p. 224. 

 *43. Serrasalmo niger Schomburgk, p. 225, pi. 



18. 

 ?44. Salmo emarginatus Schomburgk, p. 231, 



pi. 19. 



45. Salmo undulatus Schomburgk, p. 232, 



figure. 



46. Serrasalmo scotopterus Schomburgk, p. 



233. 

 *47. Myletes pacu Schomburgk, p. 236 pis. 20 



&21. 

 47a, b, c. Morocoto* cartabac, palometo, pp. 239, 



240. 

 *48. Tetragonoplerus latus Schomburgk, p. 241. 

 49. Tetragonoplerus schomburgkii Jardine, p. 



243, pi. 22. 

 *50. Xiphostoma ocellatum Schomburgk, p. 245, 



pi. 23. 



Rio Negro. = Anisitsia notatus (Schomburgk). 

 Rio Branco. 10-11 in. = Pygocentrus piraya 



(Cuvier). 

 Upper Essequibo, in pools. 8 in. = ? 

 = Pygopristis denticulatus (Cuvier). 



All rivers of Guiana. 16 in. = Pygocentrus niger 



(Schomburgk) . 

 Loc. ? = Metynnis sp.? 



Padauiri. 6 in. = ? 



Rio Branco. 



Dikes of Essequibo. 

 (Schomburgk). 



24 in. = Myleus pacu 



All rivers of Guiana. = 1 'Metynnis, sp.? 

 Rio Negro. 



Essequibo, Rios Negro and Branco. 2 ft. = Hy- 



drocynus cuvieri (Agassiz). 



8 "The morocoto, cartabac, and a species of pacu which we found in the river Parama, and which differed 

 only from the common pacu in its colour being black, constitute a group of fishes which resemble each other 

 by structure, teeth, habits, and their being phytivorous. One of the most delicious among this division is the 

 morocoto or osibu of the Warraus; it inhabits only the estuaries, and does not occur in fresh water; it would 

 fall, therefore out of the limits of the present descriptions; but as it is so closely allied with the pacu, I shall 

 mention at least its dimensions and general appearance. The teeth, which consist of fourteen in the upper jaw, 

 and are placed in a double row in the fore part, are all distinctly molar or grinding teeth. It attains a length 

 from about twenty-five to twenty-eight inches, and is twelve inches in depth. The gill covers consist of three 

 strong bones, the dorsal fin of sixteen rays, the ventral of eight, and the anal of twenty-four, the caudal is 

 compressed and thin; in every other respect it resembles the pacu, and is extremely fat and delicious. During 

 the month of August, when they feed upon the fruit of the caramacata, a tree of large size and very hard wood, 

 and the bark, leaves, and fruit of which is extremely bitter, their flesh has a bitter taste, but otherwise it is 

 much sought after, and large numbers of it are occasionally brought from the mouth of the Orinoco to George- 

 town. It forms the chief support of the Warrau Indians who inhabit the coast regions in the vicinity of the 

 estuaries of the Orinoco and the months of the Guainia and Barima." 



"The palometo, which is about fourteen inches long and seven inches in depth, its body compressed 

 and flat, with a thin sharp belly, is equally well flavoured as the morocoto and pacu, and frequents similar 

 haunts as the morocoto." (Fishes of British Guiana, pp. 239-40.) I have not identified these species 

 which are mentioned only by their Indian names. 



