92 PROCEEDINGS OF THE NATIONAL MUSEUM vol.99 



holmiae Eigenmann (U.S.N.M. No. 66302) and finding no significant 

 differences, I decided to identify the specimens, at least tentatively, 

 with holmiae from British Guiana. This leaves a problem concerning 

 the distribution of holmiae to be studied when adequate series of this 

 form are collected in the intervening territory, but until material is 

 available it is preferable to leave the form on Margarita Island un- 

 named. 



My chief basis for referring the specimens from the Isla de Mar- 

 garita to holmiae was the fin-ray and scale counts and coloration which 

 appear to agree in alcohol. It should be noted that in recording the 

 dorsal and anal rays I have included only the branched rays in table 12. 



Dr. George S. Myers (1924, p. 96, and 1940, p. 171) has reported 

 Rivulus hartii from Margarita Island, Venezuela, based on U.S.N.M. 

 No. 94150, but I find that this specimen, as well as all the others from 

 that island that I have studied, has 8 branched dorsal rays instead of 6 

 as in hartii from Trinidad ; thus Ir efer Myers's records to the synonymy 

 of holmiae. 



EIVULUS BONDI. new species 



Figure 12 



? Haplochilus harti Regan (in part), Proc. Zool. Soc. London, 1906, pt. 1, p. 389 



(Venezuela) . 

 Rivulus harti Regan (in part), Ann. Mag. Nat. Hist., ser. 8, vol. 10, p. 501, 1912 



(Venezuela). — Myers (in part), Ann. Mag. Nat. Hist., ser. 9, vol. 19, p. 123, 



1927 (Venezuela to Columbia). 

 ? Rivulus micropus (non Steindachner) Gunther, Catalogue of the fishes in the 



British Museum, vol. 6, d. 328, 1866 (Venezuela). — Eigenmann and Allen 



(in part), Fishes of western South America, p. 346, 1942 (Venezuela). 



Holoty^pe.—UMM.Z. No. 141914, a female, 40.2 mm. in standard 

 length, collected at La Florida, Caracas, Venezuela, in a quebrada 

 cano tributary to the Rio Guaire, by F. F. Bond, January 10, 1938. 



Paratypes.—UMM.Z. No. 141915, 126 specimens, 14 to 59 mm., 

 taken along with the holotype and bearing same data. 



U.M.M.Z. No. 141929, 9 specimens, 20.5 to 36.5 mm., from a lagoon 

 3 km. northwest of Petare, Venezuela (Rio Guaire system), collected 

 by F. F. Bond, January 15, 1939. 



Dr. William Beebe kindly turned over to me for report the following 

 specimens collected in Venezuela in 1942: 



N.Y.Z.S. No. 30015, 5 scecimens, 32.5 to 67 mm.. Caripito. 

 N.Y.Z.S. No. 30234, 1 specimen, 54 mm.. East Caripito Creek, near Caripito, 

 March 6. 



Description. — The description is based on the holotype and para- 

 types listed above. Detailed measurements were made and these 

 are recorded in table 12 for the holotype and two paratypes. 



The following counts were made, respectively, for the holotype and a 



