40. CYPRINODONTID^: - FUNDULUS. 333 



aa. Males and females with dark cross-bars. 

 F. siinilis (Baird & G irartl) Gthr. 



Body moderately elongate. Head rather pointed and elongate, as 

 in F. majalis. Sexes similarly colored; both olivaceous above; the 

 sides silvery, with 10-15 dark vertical bars; males with an ocellated 

 spot on the last rays of dorsal. Ventral fins short; insertion of dorsal 

 midway between front of orbit and end of caudal. Head 3J ; depth 4. 

 D. 11; A. 8 or 9; Lat. 1. 33; L. transv. 13. Coast of Texas, ascending 



streams. 



(f';f/rrt>y///ra similis Baird & Girard, Proc. Acad. Nat. Sci. Pliila. 1853, 389: Hy- 

 drar// i/>-(i ,ii mills Girard, U. S. Mex. Bound. Ichth. 68: Fnndulus similis Giinther, vi, 323; 

 Jordan, Bull. U. S. Geol. Surv. Terr, iv, 400.) 



535. F. zebra (Girard) Gthr. 



Body elongate, compressed, subfusiform, the back slightly arched. 

 Head subpyramidal, very much depressed. Eye 4 in head. Fins mod- 

 erate; higher in the males than in the females. Scales smaller than in 

 F. similis and more closely imbricated. Olivaceous above, with a black- 

 ish spot upon each scale ; sides yellowish, with narrow transverse 

 black bauds or bars, about 16 in number, more conspicuous in the males 

 than in the females, and extending from the back to the belly ; inter- 

 spaces wider than the dark bars. Fins plain. Sexes similar. Head 

 3f. D. 13; A. 14. L. 3 inches. Eio Grande in ISiew Mexico. (Girard.) 



(Hydrtmjiira zebra Girard, Proc. Acad. Nat. Sci. Pliila. Itf59, 60; Giinther, vi, 324. 

 Not ol' Dekay. ) 



aaa. Males without sharp markings; scales rough in spring. Females nearly plain. 



536. F. parvipiamis Girard. 



Male, light olive green, mottled with darker; sides witli silvery and 

 brassy lustre; lower parts yellow; about 20 short blackish, cross-bars 

 along middle of sides, broader, plainer, and more closely set behind ; 

 sides and fins with dark points; upper fins dull olive; lower yellow. 

 Female larger, olive green above, sides not barred, with an obscure 

 dusky lateral band on caudal peduncle. Fins plain. Fins very high 

 in the male, small in the female. Scales large; in the males in spring 

 roughened or ctenoid by small granulations and prickles, similar to the 

 nuptial excrescences of some Cyprinidce; fins also rough. Oviduct form- 

 ing a sheath at base of first ray of anal. Head 3; depth 3. D. 13; 

 A. 11 ; Lat. 1. 38; L. transv. 12. L. 4 inches. Coast of California from 

 Point Coucepcion southward ; very abundant in bays and lagoons. 



(Girard. Proc. Acad. Nat. Sci. Phila. 1854, 154 ; Girard, U. S. Pac. R. R. Surv. x, 

 303; Gunther, vi, 319; Steiudachuer Ichth. Beitriige, v, 155, 1876.) 



