ICHTHYOLOGY OF VENEZUELA — SCHULTZ 107 



of back above silvery lateral band with a black spot, some scales with 

 two of these small pigment spots, thus making 2 rows of spots each 

 side of middorsal line; tip of snout with black pigment; a few black 

 pigment cells on sides of lower jaw and a few near its tip. 



Genus XENOMELANIRIS Schultz 



Xenomelaniris Schultz, Proc. U. S. Nat. Mus., vol. 98, p. 33, 1948. (Genotype, 

 Atherina brasiliensis Quoy and Gaimard.) 



XENOMELANIRIS BRASILIENSIS (Quoy and Gaimard) 



SiLVERSiDEs; Pejerret de mar 



Atherina brasiliensis Quoy and Gaimard, Voyage autour du monde . . . 

 "L'Uranie" et "La Physicienne," Poissons, p. 332, 1824 (ref. copied). 



Thrina brasiliensis Jordan and Hubbs, A monographic review of the family 

 of Atherinidae or silversides, p. 59, 1919 (Lago de Maracaibo). — Hubbs, 

 Occ. Pap. Mus. Zool. Univ. Michigan, No. 88, p. 3, 1920 (salt and brackish 

 waters from Lago de Maracaibo to Rio de Janeiro, Brazil). 



U.S.N. M. No. 121822, 1 specimen, 100 mm., Maracaibo Yacht Club, Mara- 

 caibo, March 5, 1942. 



U.S.N. M. No. 121821, 2 specimens, one 68 mm., the other with broken caudal 

 peduncle, Maracaibo Yacht Club, Maracaibo, February 27, 1942. 



U.S.N. M. No. 123204, 10 specimens, 245 to 48.5 m.m.. Point Macolla, U. S. S. 

 Niagara, April 19, 1925. 



Three specimens, 15 to 50 mm. in standard length, Laguna del Rfo Capatdrida 

 at mouth, 5 km. north of Capatdrida, F. F. Bond, March 21, 1938. 



I have made counts and measurements on the above-listed material 

 and have compared these with similar counts made on specimens from 

 Trinidad and Brazil. Because of a large variation and a small series 

 of specimens it is not possible to separate the Lago de Maracaibo 

 population from that of the Gulf of Venezuela or of Brazil. Perhaps 

 when an adequate number of specimens has been studied throughout 

 the range of this species, it may be possible to break it up into sub- 

 species. 



XENOMELANIRIS VENEZUELAE (Eigenmann) 



Pejerret de Agua Dulce 



Menidia venezuelae Eigenmann, Indiana Univ. Stud., vol. 7, No. 44, p. 12, 1920 

 (Rfo Tapa Tapa, Lago de Valencia Basin, Venezuela). 



I have had for examination five small specimens, 25.5 to 33.5 mm. in 

 standard length, collected by Dr. F. F. Bond at La Boca, Lago de 

 Valencia, June 20, 1938. 



Measurements and counts were made on the above-mentioned lot, 

 and these data are recorded in tables 15 and 16, respectively. 



Genus COLEOTROPIS Myers and Wade 



Coleotropis Myers and Wade, Allan Hancock Pacific Expedition, vol. 9, No. 5, 

 p. 136, 1942. (Genotype, Menidia starksi Meek and Hildebrand.) 



