CHARACINIDAE FROM VENEZUELA—SCHULTZ 303 
Genus ROEBOIDES Giinther 
eboides GUNTHER, Catalogue of the fishes in the British Museum, vol. 5, p. 345, 
1864 (type, Epicyrius microlepis Reinhardt, designated by Higenmann, Mem. 
Carnegie Mus., vol. 5, p. 398, 1912, and by Meek and Hildebrand, Field Mus. 
Nat. Hist. Publ. Zool., vol. 10, No. 15, p. 291, 1916).—Jorpan, Genera of 
fishes, pt. 3, p. 333, 1919 (type designation, Anacyrtus guatemalensis Giinther, 
and by Higenmann and Allen, Fishes of western South America, p. 258, 1942). 
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Figure 38.—Gilberiolus alatus maracaiboensis Schultz: Holotype, U.S.N.M. No. 121386, 
120 mm. in standard length. 
KEY TO THE SPECIES OF ROEBOIDES REPORTED FROM VENEZUELA 
la. Seale rows crossing lateral line about 110; anal rays 60; humeral and caudal 
spots present; head 4, depth 2% in standard length. 
Roeboides microlepis (Reinhardt) 
1b. Scale rows crossing lateral line fewer than 95. 
2a. Scales about 80; anal rays about 52 to 55; humeral and caudal spots more 
OTAESS PTESSW Ge Un ema EE EON Ue Roeboides affinis (Gimther) 
2b. Scales about 53 to 65; anal rays 46 to 52; humeral and caudal spots black- 
ish; origin of anal fin nearer snout than base of last anal ray. 
3a. Scales 57 to 65 usually 60 to 64___Roeboides dayi dayi (Steindachner) 
3b. Scales 53 to 59, usually 54 to 58. 
Roeboides dayi dientonito, new subspecies 
ROEBOIDES MICROLEPIS (Reinhardt) 
Epicyrtus microlepis Reinwarpt, Vid. Medd. Naturh. Foren. Kjgbenhavn, 
1849, No. 1-2, p. 46 (Brazil). 
Anacyrius microlepis PELLEGRIN, Bull. Mus. Hist. Nat. Paris, vol. 5, p. 157, 1899 
(Apure River, Venezuela). 
ROEBOIDES AFFINIS (Giinther) 
_ Anacyrtus affinis Gintumr, Proc. Zool. Soe. London, 1868, p. 246 (Huallaga).— 
Prrers, Monatsb. Akad. Wiss. Berlin, 1877, p. 472 (Calabozo, Venezuela). 
Roeboides affinis E1IGENMANN and E1ceENMANN, Proc. U. S. Nat. Mus., vol. 14, 
p. 57, 1891 (Calabozo).—E1GENMANN and ALLEN, Fishes of western South 
America, p. 258, 1942 (Orinoco). 
