. 
THE CYPRINODONTS. 101 
little farther forward than that of the anal. Anal base shorter than that of 
dorsal, opposed, fin rays more often longer and reaching farther back. On 
large males the anal becomes long, pointed on the lower angle and con- 
cave on the outer (hinder) margin. Both dorsal and anal vary greatly 
with age and sex. Ventrals small, not reaching the anal. Pectorals small, 
short, broad. Caudal broad, two thirds the length of the head, subtruncate. 
All fins longer on males. Oviduct produced but little on the first ray of the 
anal, a prominent flap at each side of the bases of the anterior rays. If 
straightened the intestine would reach to the end of the caudal. 
Olivaceous, puncticulate with brown. Old males become very dark on 
the upper surfaces, A more or less distinct band of brown along the flanks, 
fading anteriorly. With or without numerous vertical bars on the flank ; in 
some cases each bar is broken into three, forming three longitudinal series 
of spots. Scales commonly darker on their edges. A silvery tint along the 
sides is not rare. Cheeks and belly with a metallic lustre. Some of the 
males are very dark, have the dorsal and anal fins considerably elongated, 
and the borders of these fins light colored, while the middle is crossed by 
cloudings or a band of black puncticulation. Largest specimen three and 
three fourths inches in length. 
California and southward. 
Var. labialis has the same coloration, but seems to possess a few more 
scales and fin rays. The variability of the species is so great, however, that 
these features are hardly sufficient to distinguish it. 
Guatemala. 
Fundulus adinius. 
Plate Il. Fig. &, teeth. 
Hydrargyra zebra Grd., 1859, P. Phil. Ac., 60; Blkr., 1860, Cypr., 486. 
Fundulas zebra Gthr., 1866, Cat., VI, 324; Jor. & C., 1877, B. Buf. Soc., IIT, 141; Jor., 1878, B. U. 
8. G. Surv., IV, 453, 664 
Pundulus (Hydrargyra) zebra Jor. & G., 1882, B. 16 U. 8. Mus., 333. 
Fuadalas adiaia Jor. & G., 1882, B. 16 U. 8. Mus, 335; G. & B., 1883, P. U. S. Mus., V, 239; Jor, 
1587, Rep. U. S. F. Com., $37. 
Fundules zebrinus Jor. & G., 1882, B. 16, U. 8, Mus, 891; Everm. & K., 1894, B. U. & F, Com., 1899, 
76, 77, 83, 89, 92, 106 
Pundalas exteneus Jor. & G., 1883, P. U.S. Mus, V, 355; Jor., 1886, P. U. S. Mus., VIII, 368, — 
1587, R. U. S. F. Com., 837. 
Pundulas diaphawas Cope, 1850, B. 20, U. 8. Mus, 33; Everm. & K., 1894, B. U. & F. Com., 1892, 
83, 90, 92, 106, pl. 23, fig. 3, 4 
Pundulas ? multifasciatas Cope & Y., 1875, Wheel. Exp. Zool, V, 695. 
B.5; D. 14; A. 14; V.6; P.17; Ll. 48; Ltr. 15; Vert. 15+ 18. 
