282 THE AMERICAN CHARACIDAE. 



37. AsTYANAX DAGUAE Eigenmann. 

 Plate 33, fig. 3. 



Astyanax daguae Eigenmann, Indiana univ. studies, 1913, no. 18, p. 23. 



Telragonopterus (Aequidcns) fasslii Steindachner, Denksch. K. akad. wiss. Wien, 1915, p. 48 (Western 

 Colombia) . 



One specimen. 5052 C. Type. 58 mm. Dagiia River at Cordova, Colom- 

 bia. Eigenmann. 



Head 3.75; depth 2.4; D. 11; A. 31; scales 8-35-7; eye 2.5; interorbital 3. 



Premaxillary teeth four in the front row, five in the second row. Maxillary 

 teeth 4. Mandibulary 5 and abruptly minute ones on the sides. Origin of anal 

 vinder base of fourth dorsal ray. 



Dorsal falcate, reaching to adipose. Pectorals reaching beyond origin of 

 second third of ventrals. Ventrals to base of 8th anal ray; a faint, diffuse 

 humeral band, a very narrow lateral band. 



38. Astyanax longior (Cope). 

 Plate 69, figs. 3 and 4; Plate 85, fig. 2. 



Telragonopterus longior Cope, Proc. Amer. philos. soc, 1878, 7, p. 691 (Peruvian Amazon); Eigenmann 

 & Eigenmann, Proc. U. S. N. M., 1891, 14, p. 53; Ulrey, Ann. N. Y. ac.ad. sci., 1895, 8, p. 278. 



Astyanax longior Fowler, Proc. Acad. nat. sci. Phil., 1906, p. 341 (Moyabamba); Eigenmann, Rept. 

 Princeton univ. exped. Patagonia, 1910, 3, p. 433. 



Astyanax pectinatus Fowler (non Cope), Loc. cit., fig. 29. 



Habitat. — Marafion Basin. 



I am indebted to the authorities of the Academy of natm-al sciences of 

 Philadelphia for the opportunity to examine one of the two known specimens of 

 this species. 



Length 79 mm.; depth about 29; width of body 9; head 21; D. 11; A. 30; 

 eye 6 mm.; interorbital 7 mm. ; maxillary 4.5 mm. ; mandible 8 mm. 



Elongate, compressed. Dorsal and ventral profiles equally cm'ved, without 

 humps or depressions. Predorsal area narrowly rounded, with a median, not 

 quite regular series of 13 scales from the dorsal to the occipital process. 



Occipital process i of the distance from its base to the dorsal, bordered by 

 three scales on each side. Second suborbital leaving a narrow naked border. 

 Maxillary rather short, its anterior margin arched. Snout pointed. Three 

 teeth in the outer series of the premaxillary, the first opposite the middle of the 



