94 PROCEEDINGS OF THE NATIONAL MUSEUM vol.99 



females since the males lack the rows of spots on the sides and the ocel- 

 late black spot on upper caudal fin base; back and sides blackish 

 brown, gradually becoming paler underneath; sides of body with rows 

 of pale specks corresponding to center of each scale; dorsal and anal 

 fins faintly barred ; blackish color of body continuing to end of caudal 

 fin, forming a wide band on middle four-fifths of caudal fin, sharply 

 contrasting with the white dorsal and ventral edges of this fin; pec- 

 torals dark; margin of anal and of pelvics black edged; chin and 

 underside of head as in females. 



Remarks.— This, new species traces down to Rivulus harti in the key 

 prepared by Regan (1912, pp. 495-496) but it differs from that 

 species as indicated in the key on page 83 and the counts differ 

 somewhat as indicated in table 13. 



Named bondi, in honor of Dr. F. F. Bond, who collected this species. 



Genus RACHOVIA Myers 



Rachovia Myers, Ann. Mag. Nat. Hist., ser. 9, vol. 19, pp. 116, 119, 1927. (Gen- 

 otype, Rivulus brevis Regan.) 



RACHOVIA HUMMELINCKI de Beaufort 



Rachovia hummelincki de Beaufort, Studies on the fauna of Curasao, Aruba, 

 Bonaire, and the Venezuelan Islands, vol. 2, p. 110, pi. Xb, 1940 (Penfn- 

 sula de Paraguana, Poza de San Antonio, east of Carirubana, Venezuela). 



Genus CYPRINODON Lacepede 



Cyprinodon Lacepede, Histoire naturelle des poissons, vol. 5, p. 486, fig., 1803. 

 (Genotype, Cyprinodon variegatus Lacepede.) 



CYPRINODON DEARBORNI Meek 



GUAJACON 



Cyprinodon dearborni Meek, Publ. Field Columbian Mus. (Zool.), vol. 7, No. 



7, p. 208, 1909 (Willemstad, Curasao, Dutch West Indies). 

 Cyprinodon cyaneostriga Ahl, Zool. Anz., vol. 124, p. 58, 1938 (Curagao, in sea 



and in strong brackish water). 



U.S.N.M. No. 121692, 147 specimens, 11 to 45 mm. in standard length, Salina 

 Santa Rosa, 3 km. north of Maracaibo in a pool with a specific gravity reading of 

 1.029 and a temperature of 98° F., February 20, 1942. 



The following collections were made by Dr. F. F. Bond and were 

 lent for report by Dr. Carl L. Hubbs, University of Michigan. 



1 specimen, 13.2 mm., from cemeterfo, Puerto Cabello, January 26, 1938. 

 73 specimens, 8.2 to 27.4 mm., saline lagoon 5 km. west of Cumand, March 

 25, 1939. 



1 specimen, 12 mm., coastal lagoon 15 km. north of Maracaibo, April 6, 1938. 

 63 specimens, 10 to 27.5 mm., lagoons, Tucacas, Estado de Falc6n, 60 km. 



northwest of Puerto Cabello, January 29, 1939. 



2 specimens, 24 and 26 mm., Laguna del Rfo Capatdrida, 5 km. north of Capa- 

 tdrida, March 4, 1938. 



50 specimens, 12.5 to 27.5 mm., tidal pools, Puerto Cabello, January 26, 1938. 



