Jordan and Evermann. Fishes of North America. 097 



scarcely in advance of that of anal; dorsal and anal fins small; base of 

 the caudal scaly ; tail of moderate length, its least depth scarcely 

 equal to length of head, without snout ; seven longitudinal series of 

 scales on each side of the tail. Body light brownish, a silvery 

 vertical streak on each scale. A small blackish spot in the middle 

 of the root of the caudal ; a blackish spot across the base of the three 

 posterior dorsal rays ; the prominent belly of females silvery in its 

 anterior half, and deep black in its posterior, these colors being sharply 

 separated from each other. Locality unknown, perhaps Jamaica. (Giin- 

 ther.) (,ut/laf, black ; yaenv/p, belly.) 



melanogaster, GUNTHER, Cat., vi, 345, 186G, locality unknown. 



1035. PiECILIA SPILURUS, Gunther. 



Head 4; depth 3|; eye longer than snout, 3 in head, and f- width 

 of interorbital space. D. 7; A. 8; scales 26-9. Width of interorbital 

 space a little less than distance between gill opening and center of eye ; 

 Origin of dorsal midway between root of caudal and upper end of gill 

 opening, over thirteenth scale of the lateral series ; origin of anal fin dis- 

 tinctly in advance of that of dorsal (in female) ; dorsal and anal fins 

 small; base of the caudal fin covered with scales. Tail of moderate 

 height, its least depth being equal to the length of the head (without 

 snout). Brownish olive, each scale darker in the center ; a black spot on 

 each side of the back of the root of the tail ; dorsal fin with a few black 

 spots along the middle. Length 2 inches. Central America. Known 

 from one female. (Gunther.) (aTrZAof , spot ; ovpd, tail.) 

 Pcecttia spilurus, GUNTHER, Cat., vi, 345, 1866, Central America. 



1036. PCECILIA ELONGATA, Gunther. 



Head 4i; depth 4. D. 9; A. 8; scales 30 to 32-9. Caudal peduncle 

 deep, its least depth If in its own length, and a little less than length of 

 head, without snout. Eye equal to length of snout, 3 in head, and 

 more than half width of interorbital space. Snout much depressed. 

 Lower jaw with two series of very small teeth only ; in the upper the 

 posterior band of villiform teeth is very indistinct. Origin of dorsal 

 fin nearer root of the caudal than occiput, a little behind root of anal, 

 above fourteenth scale of lateral series ; dorsal fin higher than long, its 

 longest ray being as long as the head without snout; anal small. Eight 

 longitudinal series of scales on each side of the tail. Caudal rounded, 

 its base only covered with scales. Uniform olivaceous, sometimes with 

 10 or 12 faint cross shades ; the membrane of the pouches of scales with 

 a black margin; fins immaculate. A large and easily known species, 

 abundant in mouths of streams about Panama ; the only species thus far 

 recorded in salt water. Length 4 inches, (elongatus, lengthened.) 

 Poscilia elongata, GUNTHEB, Cat., vi, 342, 1866, Panama; STEINDACHNER, Ichth. Beitr., v, 1876. 



1037. PCECILIA PRESIDIONIS, Jordan & Culver. 



Head 4 ; depth 3i to 4i ; eye as long as snout, 3 in head ; interorbital 

 space 2 in head. D. 7 or 8 ; A. 7 ; scales 28-9. Body rather elongate, shaped 



