40. CYPRIXODONTID^ FUNDULUS. 
333 
aa. Males and females -witTi dark cross-bars. 
534. F. (Baird »fc Girard) Gtbr. 
Body moderately elongate. Head rather i)ointed 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 3;^; depth 4. 
D. 11; A. 8 or 9; Lat. 1. 33; L. trausv. 13. Coast of Texas, ascending 
streams. 
{Ilijdraroyra similis Baird &, Girard, Proc. Acad. Nat. Sci. Phila. 1853, 339: Hy- 
drar(jiira similis Girard, U. S. Mex. Bound. Icbth. 68: Fnndulus simiUs Giiirther, vi, 323; 
Jordan, Bull. U. S. Geol. Surv. Terr, iv, 400.) 
535. F. zell>ra (Girard) Gtbr. 
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 bands or bars, about IG 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. Bio Grande in oSew Mexico. {Girard.) 
{Ilydrar(jiira zebra Girard, Proc. Acad. Nat. Sci. Pbila. 1859, 60; Giintber, vi, 324. 
Not of Dekay.) 
aaa. Males without sharp markings; scales rough in spring. Females nearly plain. 
536. F. |>ao'vig>iBB9iss Girard. 
JMale, light olive green, mottled with darker; sides with silver}" and 
brassy lustre; lower parts yellow; about 20 short blactisb cross-bars 
along middle of sides, broader, plainer, and more closely set behind ; 
sides and tins 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 Cyprinidw ; 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 Concepcion southward ; very abundant in bays and lagoons. 
(Girard, Proc. Acad. Nat. Sci. Phila. 1854, 154; Girard, U. S. Pac. R. R. Surv. x, 
303; Giimher, vi, 319; Steindachuer Ichth. Beitriige, v, 155, 1876.) 
