THE CYPRINODONTS. 41 



Radical differences in the structure of jaws and teeth and the presence of 

 the viliforra bands behind the outer series of teeth on the jaws compels the 

 separation of this genus from Girardinus. 



Glaridodon uninotatus. 



Plate V. Fig. 10, teeth; Plate VIII. Fig. 14, male. 



Girardinus uninotatus Poey, 1861, Mem., II, 309, 383, — 1868, Repert., II, 411,-1876, An. Soc. Esp., 

 V, 142; Gtli., 1866, Cat., VI, 351; Jor., 1878, B, U. S. G. Sur., IV, 411. 

 Heterandria uninotata Jor., 1887, P. U. S. Mus., IX, 563. 



B. 5 ; D. 10 ; A. 11 ; V. 6 ; P. 12-13 ; LI. 28-30 ; Ltr. 9-8 ; Vert. 13 + 17. 



Body elongate, compressed, arch of back low ; caudal pedicel of mod- 

 erate depth. Head short, two ninths of the length to the base of the caudal, 

 slightly arched across the forehead. Mouth wide, arched in outline, directed 

 upward ; lower jaws longer, strong, firmly united ; upper shorter, protractile. 

 Snout short, blunt, two thirds of eye or half of interorbital space ; chin 

 steep. Teeth in the outer series stout, varying in shapes, slightly swollen at 

 the base, broadened and shovel shaped at the apex, hooked, firmly set ; in 

 the inner series small, pointed, slightly broadened near the summit, hooked. 

 Pharyngeal teeth slender, hooked, with a shoulder. Eye large, longer than 

 snout, two thirds to three fourths of forehead, two fifths to one third of head. 

 Dorsal origin near the middle of the total length, over third or fourth rays 

 of anal in the female. Anal of male farther forward ; anal process very 

 long, one third of the total length of the fish. Ventrals and pectorals small ; 

 latter reaching a vertical from the origin of the anal in the male or the bases 

 of the ventrals in the female. Caudal large, subtruncate or slightly convex 

 on hind margin. Scales large. Intestine more than twice the total length. 



Back olivaceous, sides silvery, belly lighter. A black spot on the twelfth 

 to the fourteenth scales behind the head, above the vent, on the middle of 

 the flank. Poey says of fresh specimens, "la couleur est d'un brun verdatre, 

 avec une grande tache arrondie sur les flancs, &, I'aplomb de I'anus ; un cercle 

 noir entoure I'orifice anal ; le tronc porte un reseau de points pigmentaires, 

 qui disparaissent dans I'eau de vie." He found twenty-four embryos in one 

 female. Our description is taken from his types. 



Largest female three and three eighths and largest male one and seven 

 eighths inches. 



Cuba. 



