al2 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
U.S.N.M. No. 121349, 19 specimens, 21 to 35 mm., from the Rfo Apén, about 
35 km. south of Rosario, February 26. 
U.S.N.M. No. 121350, 2 examples, 28 and 31 mm., from the Rio San Pedro at 
bridge, tributary to Rio Motatan, March 20. 
U.S.N.M. No. 121351, 18 examples, 22.5 to 34 mm., taken in the Rio San Juan 
at bridge, tributary to Rio Motat4n, March 20. 
U.S.N.M. No. 121355, 2 specimens, 31 and 33 mm., from the Rio Jimelles, 12 
km. east of Motatan, tributary to Rfo Motatén, March 24. 
U.S.N.M. No. 121353, 26 specimens, 23.5 to 32.5 mm., taken in the Rfo Ma- 
chango at bridge south of Lagunillas, March 16. 
U.S.N.M. No. 121354, 13 examples, 24 to 25 mm., collected in the Rio San 
Juan, 12 km. south of Rosario, February 26. 
U.S.N.M. No. 121358, 4 specimens, 32 to 37.5 mm., taken in the Rfo Motatdn, 
8 km. below Motatén, March 24. 
U.S.N.M. No. 121352, 2 examples, 25 and 30 mm., collected at the mouth of 
Cafio de Sagua, 35 km. north of Sinamaica (salinity 1.021), March 12. 
U.S.N.M. No. 121357, 94 specimens, 12 to 26.5 mm., from the Rfo Negro 
below mouth of Rio Yasa, March 2. 
U.S.N.M. No. 121356, a specimen, 30.5 mm., from the Rio Motatdn at the 
bridge, 22 km. north of Motatan, March 17. 
U.S.N.M. 121558, a specimen 35 mm. from the Rio Palmar at bridge 70 km. 
southwest of Maracaibo, March 6. 
Genus XENAGONIATES Myers 
Xenagoniates Myxrrs, Stanford Ichth. Bull., vol. 2, p. 90, fig. 1, 1942. (Type, 
Xenagoniates bondi Myers.) 
XENAGONIATES BONDI Myers 
Xenagoniates bondi MysErs, Stanford Ichth. Bull., vol. 2, p. 90, 1942 (Rio Amana, 
6 km. east of Santa Barbara and 35 km. [?] weet [south] of Maturin, Becton! 
Venezuela). 
Genus APHYOCHARAX Ginther 
Aphyocharax GtntuHER, Proc. Zool. Soc. London, 1868, p. 245. (Type, Aphyo- 
charax pusillus Giinther.) 
APHYOCHARAX ERYTHRURUS Eigenmann 
Aphyocharax erythrurus E1GENMANN, Mem. Carnegie Mus., vol. 5, p. 313, 1912 
(Rockstone sand bank; Maripicru Creek; Crab Falls). 
Two specimens, 45.5 and 48.5 mm., collected by Dr. William Beebe, 
at Caripito, Venezuela, 1942, were lent to me for identification and 
report. 
Genus PRISTELLA Eigenmann 
Pristella EIGENMANN, Bull. Mus. Comp. Zool., vol. 52, No. 6, p. 99, 1908. (Type, 
Holopristes riddlei Meek.) 
PRISTELLA RIDDLEI (Meek) 
Holopristes riddlei MEEK, in Eigenmann and Ogle, Proc. U.S. Nat. Mus., vol. 33, 
p. 11, 1907 (Los Castillas, Venezuela). 
Pristella riddlet FowuEr, Proc. Acad. Nat. Sci. Philadelphia, vol. 83, p. 407, 1931 
(Pitch Lake at Guanoco, Venezuela). 
