Eigenmann: The Serrasalmin^ and Mylin/e. 253 



Paraguay); Boll. Mus. Univ. Torino, Vol. XV, rgoo (near Corumba); Eigen- 

 mann & Ogle, Proc. U. S. Nat. Mus., Vol. XXXIII, 1909. P- 35 (Paraguay); 

 Eigenmann, Ann. Carnegie Mus., Vol. IV, 1907, p. 141 (Rio Otuquis, Ascuncion; 

 Porto Murtinho) — Reports Princeton Univ. Exp., Patagonia, Vol. Ill, 1910, 

 p. 442. 

 Pygocentriis dulcis IIeckel MS. in Kncr. 



Distribution. — Basin of Amazon and La Plata. 



The record of " Bogota," if by this is meant the capital of Colombia, 

 is certainl}^ wrong. The species is apparently quite abundant in the 

 Paraguay basin. 



Distinguished by the intense submarginal black caudal band, and 

 spotted sides. 



5774 a-J. C. M. 54-165 mm. Rio Jauru, June 4, 1909. Haseman. 



5775 o~^- C. M. 44-49 mm. Caceres, May 26, 1909. Haseman. 



5776 a. C. M. 90 mm. Rio San Francisco, June 10, 1909. Hase- 

 man. 



5795 a. C. M. 37 mm. Bastos, June 26, 1909. Haseman. 



5777 0'~(^- C. M. 45-120 mm. San Joaquin, Bolivia, Sept. 4 and 5, 

 1909. Haseman. 



5778 a-d. C. M. 44-154 mm. Cacequy, Feb. i, 1909. Haseman. 



5779 a-i. C. M. 46-83 mm. Uruguayana, Feb. 5, 1909. Haseman. 

 5761 a-c. C. M. 104 mm. Riberao Azul, 22 miles northeast of 



Salto das Cruzes, tributary of the Rio Tiete. Oct. 7, 1908. Hase- 

 man. 



5780 a-h. C. M. 113 mm. Para, Jan. 17, 1910. Haseman. 



5781 a. C. M. 44 mm. Corumba, April 27, 1909. Haseman. 



15^ 16 17 30^ 



The counts of a number of specimens are: U. -^ , — , — ; A. — , 



4641 



323334^ 



4' I ' I * 



20. Serrasalmo maculatus Kner. 



Serrasalmo maculatus Kner, Characinen, Vol. II, 1859, p. 33. taf. iv, fig. 10 (Rio 

 Guapore); Gunther, Cat. Fishes Brit. Mus., Vol. V, 1864, p. 371; Cope, Proc. 

 Am. Philos. Soc, Vol. XI, 1870, p. 566 (Para); Steindachner, Flussf. Sudam., 

 Vol. IV, 1882, p. 16 (Huallaga); Eigenmann & Eigenmann, Proc. U. S. Nat, 

 Mus., Vol. XIV, 1891, p. 60; Ulrey, Ann. N. Y. Acad. Sci., Vol. VII, 1895, p. 

 298 (Tocantins); Perugia, Ann. Mus. Civ. Stor. Nat., Geneva, Ser. 2, Vol. VIII. 

 1897, p. 26 (Rio Madidi, Bolivia); Pellegrin, Bull. Mus. d'Hist. Nat., 1899, 

 p. 406 (Manaos); Fowler, Proc. Acad. Nat. Sci., Phila., 1906, p. 469 (Para, 

 notes on Cope's specimen); Eigenmann, Reports Princeton Univ. Exp. Pata- 

 gonia, Vol. Ill, 1910, p. 442. 

 ^ The denominator indicates the number of specimens having the given character. 



