250 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
a very low keel along midveniral line from pelvics to anus; peritoneum 
dusky to blackish on sides, paler ventrally; body plain darkish above, 
paler below; in young and half-grown a faint grayish streak occurring 
along midsides posteriorly_____- Curimata magdalenae Steindachner 
CURIMATA SCHOMBURGKI Giinther 
Curimatus schomburgkit GUNTHER, Catalogue of the fishes in the British Museum, 
vol. 5, p. 291, 1864 (British Guiana). 
Curimaia schomburgkit Fow.Eer, Proc. Acad. Nat. Sci. Philadelphia, vol. 83, 
p. 407, 1981 (Pitch Lake at Guanoco, Venezuela). 
CURIMATA SPILURA Giinther 
Curimatus sptilurus GUNTHER, Catalogue of the fishes in the British Museum, vol. 
5, p. 288, 1864 (Essequibo).—StEinpacuner, Denkschr. Akad. Wiss. Wien, 
vol. 41, p. 158, 1879 (Ciudad Bolivar). 
Curimata spilura E1iGENMANN and ALLEN, Fishes of western South America, 
p. 292, 1942 (Orinoco). 
CURIMATA ARGENTEA Gill 
Curimatus argenteus Gitt, Ann. Lye. Nat. Hist. New York, vol. 6, p. 62, 1858 
(Trinidad).—E1cgeNMANN, Indiana Univ. Studies, vol. 7, No. 44, p. 9, 1920 
(El Conecejo, Rio Tiquirito, Maracay, Rio Bué, Venezuela).—PErARsn, Univ. 
Wisconsin Studies, No. 1, p. 21, 1920 GQnouth Rio Bué, Lago Valencia at 
Maracay, Venezuela). 
Curtmata argenitca FowxiER, Proc. Aead. Nat. Sci. Philadelphia, vol. 83, p. 407, 
1931 (Pitch Lake at Guanoco, Venezuela). 
CURIMATA MAGDALENAE Steindachner 
BocacHICA 
Curimatus magdalenae STEINDACHNER, Denkschr. Akad. Wiss. Wien, vol. 39, 
p. 50, 1878 (Rio Magdalena) —Mrrx and HiLtpEBRAND, Publ. Field Mus. 
Nat. Hist., zool. ser., vol. 10, No. 15, p. 269, 1916 (Lake Maracaibo).— 
EicgENMANN, Mem. Carnegie Mus., vol. 9, p. 104, pl. 17, fig. 2, 1922 (Encontra- 
dos, Estado de Zulia, Maracaibo Basin). 
See table 1 for counts made on specimens of Curimata magdalenae. 
Throughout the extensive range of C. magdalenae local populations, 
presumably of subspecific rank, undoubtedly occur, but the signif- 
icance of these and their naming should await a careful analysis of 
hundreds of examples from many different stream systems. --There 
are about 19 or 20-+30 gill rakers on the first gill arch of the form in 
the Maracaibo Basin. 
The following collections were made by Leonard P. Schultz in the 
Maracaibo Basin of Venezuela during 1942: 
U. S. N. M. No. 121309, 4 specimens, 45 to 92 mm. in standard length, Rio 
Machango at bridge south of Lagunillas, March 16, 
U.S. N. M. No. 121312, a specimen 114.5 mm., from the Rio San Pedro at the 
bridge south of Mene Grande, Motatan system, March 20. 
U. 8. N. M. No. 121308, a specimen 83 mm., from Ciénaga del Guanavana 
about 10 km. north of Sinamaica, March 11. . 
