696 Bulletin 47, United States National Museum. 



back in male. Dorsal, caudal, and pectoral dark grayish, the dorsal punc- 

 tate in both sexes, the spots arranged in several rows, sometimes gath- 

 ered in blotches ; caudal with cross rows of dots ; anal dotted in old 

 females only ; sides of body with faint, dark-gray cross bands. Length 3 

 inches. Streams at Colon, on the Atlantic side of the Isthmus of Panama. 

 (Steindachner.) (Named for Alphonse Boucard, the ornithologist, who 

 collected in tropical America.) 



Poecilia boucardi, STEINDACHNER, Ichth. Beitr., vi, 8, 1878, Colon; Aspinwall. 



1032. PCECILIA VANDEPOLLI, Van Lidth de Jeude. 



Depth 3 ; D. 8 ; A. 9 ; scales 25 to 27-9. Eye 3 in head. Female with 

 the anal a very little behind dorsal ; male with the anal much advanced 

 and the ventrals produced ; outer teeth curved, all of them brown at tip. 

 Yellowish brown, silvery below; a dark spot behind interorbital region, 

 continued as a dark line along middle of back; dark edges of scales giv- 

 ing the body a reticulated appearance ; sometimes faint cross-bands on 

 tail , male sometimes with a black spot as large as eye above and behind 

 root of pectoral. Length If inches. Brooks on the island of Curafao, 

 one of the Leeward Islands in the Caribbean Sea. (Lidth de Jeude.) 

 (Named for J. R. H. Neervoort van de Poll, its collector.) 



Poecilia vandepolli, VAN LIDTH DE JEUDE, Notes from Leyden Museum, ix, 438, 1887, Cura9ao, 

 one of the Leeward Islands. (Coll. Neervoort van de Poll). 



Represented in the brooks of the neighboring island of Aruba by 

 1032a. PCECILIA VANDEPOLLI ARUBENSIS, Van Lidth de Jeude. 



Body deeper, the depth 3| in length; anal more advanced in females, 

 opposite dorsal fin. Dorsal and caudal with black lines and spots, the 

 color otherwise as in P. vandepolli. Length 2i inches. Streams of Aruba. 

 (Van Lidth de Jeude.) 



Poecilia vandepolli arubensis, VAN LIDTH DE JEUDE, Notes from Leyden Museum, ix, 438, 1887, 

 Aruba, one of the Leeward Islands. (Coll. Neervoort van de Poll). 



1033. PCECILIA DOMINICENSIS, Cuvier & Valenciennes. 



Head 4 ; depth 3f . D. 8 ; A. 7 or 8 ; scales 28-8. Origin of dorsal a 

 little nearer root of caudal than to occiput, nearly opposite that of 

 anal ; dorsal and anal fins small, rounded. Tail of moderate height, its 

 least depth less than length of head without snout. A dark line along 

 the middle of the back ; sometimes irregular, indistinct blackish spots 

 on the back; caudal with 2 light-brownish cross-bands. San Domingo 

 and Barbadoes. Known from females only. (Giinther.) 



Poecilia dominicensis, CUVIER & VALENCIENNES, Hist. Nat. Poiss., xvm, 131, pi. 525, 1848, San 

 Domingo; GUNTHER, Cat. vi, 346, 1866. 



1034. PCECILIA MELANOGASTER, Gunther. 



Head 3f ; depth 3i. D. 8 ; A. 8 ; scales 26-8. Eye of full-grown speci- 

 mens somewhat more than length of snout, 3J in head, and more than 

 half width of interorbital space. Origin of dorsal midway between 

 root of caudal and occiput, over eleventh scale of the lateral series, 



