THE CYPRINODONTS. 47 



specimens the black, broadening forward, extends from the tip of the anal to 



the chin. Females three and one fourth, and males one and three fourths 



inches. 



Cuba. 



Girardinus denticulatus sp. n. 



B. 5 ; D. 9 ; A. 11 ; V. 6 ; P. 12 ; LI. 29 ; Ltr. 9 ; Vert. 13+17. 



This form is closely allied to G. metallicus ; it is distinguished by the 

 presence of bands of denticles behind the outer series of teeth on the jawa 

 and by the coloration. 



Light yellowish or olivaceous brown, edges of scales darker, cheeks, 



throat, and belly silvery. A band of silvery more or less distinct from the 



upper angle of the opercle to the middle of the base of the tail. Above this 



band the back is darker ; below it the flanks are light or silvery. None of 



the specimens show the vertical silvery bars so characteristic of G. metallicus. 



On most a clouded blotch crosses the greater part of the dorsal, becoming 



more intense backward. A similar blotch, but less vivid is sometimes seen on 



the anal. Rarely a dark line extends from the occiput to the dorsal. Top of 



head dark. 



Kemedios, Cuba. 



Girardinus creolus sp, n. 



Plate V. Fig 9, teeth. 



B. 5 ; D. 10 ; A. 11 ; V. 6; P. 16 ; LI. 30-29 ; Ltr. 9 ; Vert. 14+16. 



Body rather stout, compressed behind the head, caudal pedicel moder^ 

 ately deep. Head broad, as wide as deep, one fourth of the length to the 

 base of the caudal, about equal to depth of body at dorsal origin, flattened on 

 the crown. Snout short, not as long as the eye, broad, truncate. Mouth 

 wide, directed upward, shaped as in Poecilia ; mandibles short, loosely joined ; 

 intermaxillaries shorter, protractile. Lips thick. Outer series of teeth larger, 

 broad and hooked toward the apex, constricted toward the base, movable ; 

 inner series in bands, small, pointed, slightly broadened toward the point; 

 pharyngeal small, slender, some with a shoulder. Eye large, nearly one 

 third of the head or half of the forehead. Dorsal origin about midway from 

 base of pectoral to base of caudal, above the middle of the anal. Anal of 

 the female not reaching as far backward as the dorsal ; fin farther forward on 

 the male, behind the ventrals, equal one third of the total length, modified 

 to form an intromittent organ with a clasper at the end. Ventrals small, 

 reaching the origin of the anal. Pectorals reaching the bases of the ventrals 



