336 CHARACTN1D-E. 



7. Brycon atricaudatus. 



Chalceus atricaudatus, Kner, Sitzgsber. Acad. Wiss. Munch. 1863, 

 p. 227. 



D. 11. A. 29. L. lat. 54-55. L. transv. 10/5. 

 The length of the head equals the height of the body, and is one- 

 fourth of the total length (with the caudal). End of the tail with a 

 hroad blackish band*. {Kner.) 

 Western Andes of Ecuador. 



8. Brycon carpophagus. 



Chalceus carpophaga, Cuv. $ Vol. xxii. p. 252 ; Casteln. Anim. Atner. 

 Sud, Poiss. p. 68. pi. 34. fig. 3 ; Kner, Denkschr. Acad. Wiss. Wien, 

 1860, xviii. p. 12. 



D. 11. A. 25. V. 9. L. lat. 61-63. L. transv. 12/7. 

 The height of the body is one-third of the total length (without 

 caudal) ; caudal fin scarcely emarginate. Coloration uniform. 

 Guiana, Brazil. 



9. Brycon hilarii 



Chalceus hilarii, Cuv. # Vol. xxii. p. 246 ; Casteln. Anim. Amer. Sud, 

 Poiss. p. 68. pi. 36. fig. If; Kner, Denkschr. Acad. Wiss. Wien, 

 1860, xviii. p. 10. 



D. 11. A. 26-28. V. 10. L. lat. 76-80. L. transv. ^. 



A large black spot on the base of the caudal fin, extending over 

 its lobes. Caudal scarcely emarginate. 

 Brazil. 



10. Brycon pesu. 



Brycon pesu, Mull, fy Trosch. Hor. Ichth. i. p. 30. taf. 7. fig. 1. 

 D. 11. A. 22. V. 8. L. lat. 41. 



The height of the body is contained thrice and one-third in the 

 total length (without caudal), the length of the head four times. 

 Snout pointed, as long as the eye, with the upper jaw projecting 

 beyond the lower. The origin of the dorsal fin is behind the root 

 of the ventral, a little nearer to the caudal than to the extremity of 

 the snout. The pectoral reaches the ventral. A black humeral spot. 

 (M. % T.) 



Guiana. 



25. CHALCIN0PSIS. 



Chalcinopsis, Kner, in Sitzgsber. Acad. Wiss. Munch. 1863, p. 226. 

 Dorsal fin placed somewhat behind the middle of the length of the 

 body, behind the ventrals ; anal long. Body oblong, covered with 



* Although the author in the diagnosis uses the word fascia, which signifies a 

 cross-band, it is probable that this species is marked with a longitudinal caudal 

 band, like others of its congeners. 



t If this figure really represents Chalceus hilarii, C. & V., it is very incorrect. 



