208 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
The following coloration of acanthogaster was recorded from live 
specimens: Plain in color, silvery on sides, darker above and paler 
below; anal fin brilliant crimson; upper parts of eyes red. 
The pampanos frequent the deeper pools of the rivers, and are 
active fishes. They are used extensively as food and occur occa- 
sionally in the Maracaibo market. 
MYLOSSOMA AUREUM (Agassiz) 
Myletes aureus AGassiz, in Spix, Selecta genera et species piscium ... Brasiliam 
ah Toy, ES eva) 
Mylossoma aureum EIGENMANN and ALLEN, Fishes of western South America, 
p. 249, 1942 (Orinoco to Ucayali and La Plata). 
MYLOSSOMA DURIVENTRIS (Cuvier) 
Myletes duriventris CuviER, Mem. Mus. Hist. Paris, vol. 4, p. 451, pl. 22, fig. 2, 
1818.—?Prrers, Monatsb. Akad. Wiss. Berlin, 1877, p. 473 (Calabozo, Vene- 
zuela).—EIGENMANN and EHEIiGENMANN, Proc. U. S. Nat. Mus., vol. 14, 
p. 61, 1891 (Calabozo). 
Mylossoma duriventre EIGENMANN and ALLEN, Fishes of western South America, 
p. 249, 1942 (Orinoco, upper Amazon, La Plata systems). 
Genus MYLOPLUS Gill 
Myloplus Giuu, Proc. U. 8. Nat. Mus., vol. 18, p. 214, 1896. (Type, Myletes 
astertzas Miller and Troschel.) 
MYLOPLUS ASTERIAS (Miller and Troschel) 
Myletes asterias MttuER and TroscuEn, Horae ichthyologicae, pt. 1, pp. 24, 36, 
pl. 10, fig. 2, 1845. 
? Myloplus (type: Myletes asterias Miller and Troschel) E1GENMANN and ALLEN, 
Fishes of western South America, p. 251, 1942 (Orinoco and Guianas to 
Amazons-.and Paraguay). 
MYLOPLUS SCHOMBURGKI (Jardine) 
Tetragonopterus schomburgkii JARDINE, 1n Schomburgk, The natural history of the 
fishes of [British] Guiana, vol. 1, p. 248, pl. 22, 1841 (ref. copied). 
Myletes palomet VALENCIENNES, in Cuvier and Valenciennes, Histoire naturelle 
des poissons, vol. 22, p. 214, 1849 (upper Orinoco).—Ro6nut, Fauna descriptiva 
de Venezuela, p. 384, 1942 (Rio Apure). 
Subfamily CTENOLUCINAE 
Genus CTENOLUCIUS Gill 
Ctenoluctus G1iuu, Proc. Acad. Nat. Sci. Philadelphia, Suppl., vol. 13, p. 8, 1861. 
[Type, based on U.S. N. M. No. 1658 by Gill from Rio Truando, Colombia= 
Belonocharaz beant Fowler =Ctenolucius hujeta beant (Fowler).] 
Luciocharax STEINDACHNER, Denkschr. Akad. Wiss. Wien, vol. 39, p. 67, pl. 13, 
fig. 2, a-b, 1878. (Type, Luciocharax insculptus Steindachner, Rio Mag- 
dalena.) 
Belonocharax Fow Er, Proc. Acad. Nat. Sci. Philadelphia, vol. 62, p. 464, fig. 51, 
1906. (Type, Belonocharax beant Fowler, Truando.) 
This group of fishes has been reported upon under at least two sub- 
family names from time to time. Eigenmann (Repts. Princeton Univ. 
Exped. Patagonia, vol. 3, pt. 4, p. 446, 1910; Mem. Carnegie Mus., 
