258 



THE AMERICAN CHARACIDAE. 



19. ASTYANAX (POECILURICHTHYS) BIMACULATXJS LACUSTRIS (Ltitken). 



Plate 62, fig. 3. 



Telragonopterus lacustris Lutken, Overs. K. Dan. selsk. Forh., 1874, p. 131 (Lagoa Santa); Lutken, 

 Vidensk. selsk., 1875, 12, p. 208, pi. 5, fig. 15 (Rio das Velhas); Eigenmann & Eigenmann, Proc. 

 U. S. N. M., 1891, 14, p. 52; Eigenmann, Rept. Princeton univ. exped. Patagonia, 1910, 3, p. 433. 



Habitat. — Rio San Francisco. 



Specimens examined. 



The usual number of anal rays for this variety is 27, the average 26, the 

 scales of the lateral Une are usually 33-35. 



The depth of the largest specimens in 20875 varies from 1.9-2.2 in the 

 length; the anal rays vary from 23-27; the scales from 33-35. 



20. Astyanax (Poecilurichthys) bimaculatus novae Eigenmann. 



Plate 52, fig. 3. 



Astyanax bimacidatns novae Eigenmann, Ann. Carnegie mus., 1911, 8, p. 175, pi. 7, fig. 2. 



Habitat. — Eastern tributary of Rio Tocantins. 



1 To base of caudal. 



2 These arc marked Brazil (Sceva). Inasmuch as their rays and fins correspond with Rio San 

 Francisco specimens and with none others, and Sceva collected at Lagoa Santa, there can be little doubt 

 as to the locality. 



