1. CYPRINODON. 303 



P-_ , figs. 1-3, appears scarcely to differ from C. calarUanus. It is 

 said to have ten, rarely nine anal rays; and the number of cross 

 bands in the male is from twelve to sixteen. 



2. Cyprinodon fasciatus. 



Lebias fasciata, Valenc. in Ilumh. Ohserv. Zoolon. ii. p. 160, pi. 51. 



fig. 4 (bad). 

 C}T)rinodou fasciatus, Cuv. 8f Val. xviii. p. 158; 3Iartens, Wiegm. Arch. 



xxiv. p. 153, taf. 4. fig. 4. 



D. 10. A. 8 (9). V. 7. L.lat.26. 



Known from males only. 



The height of the body is nearly equal to the length of the head, 

 which is one-fourth of the total (with the caudal). The first dorsal 

 ray is in the first half of the total length ; dorsal and anal fins ele- 

 vated. Sides of the body with ten or twelve silvery cross bands ; 

 dorsal with the anterior margin black; caudal sometimes with a 

 greyish cross band. 



Brackish waters of Sardinia and Venice. 



a. Two and one-third inches long. Sardinia. 



Bellotti, who observed the difference of coloration between the 

 two sexes of C calaritanus (as described above), thought that C. fas- 

 ciatus (Val.) was the male of C. calaritanus. Mem. Accad. Sc. Torin. 

 1858, xm. p. clix. However, as Valenciennes asserts that he has 

 verified the small number of anal rays in several specimens of 0. fas- 

 ciatus, it is probable that they are really two distinct species, in 

 which the sexes are similarly distinguished from each other, but 

 that Valenciennes knew the female only of O. calaritanus, and the 

 male only of C fasciatus. 



Also the specimens collected by Martens at Venice had eight anal 

 rays. 



3. Cyprinodon dispar. 



Lebias dispar, Riippdl, Atl. Fische, p. 06, taf. 18. fig. 1 (male) ; (fig. 2, 



female?). 



velifer et lunatus, Ehrenherg, MS. 



Cyprinodon lunatus, Ckiv. Sf Val. xviii. p. 161. 



hammonis, Richards. Proc. Zool. Soc. 1856, p. 371 (not Cm: ^• 



Val). 



D. 9. A. 10. V. 7. L. lat. 25-27. L. transv. 9. 

 The height of the body equals the length of the head, and is con- 

 tained thrice and two-thirds in the total (without caudal) ; head 

 thick, snout obtuse. The diameter of the eye equals the length of 

 the snout, is rather more than one-half of the width of the inter- 

 orbital space, and contained thrice and two-thirds in the length of 

 the head. Dorsal and anal elevated in males, and extending to the 

 caudal if laid backwards. In males the origin of the dorsal fin is 

 midway between the root of the caudal and the pra^opcrculum, and 

 corresponds to the eleventh scale of the lateral line ; in females the 

 dorsal is situated further backwards, its origin being midway be- 

 tween the gill-opening and the root of the caudal, but also cor- 



