104 THE CYPRINODONTS. 
Head depressed, body compressed, depth equal length of caudal or two 
elevenths of the total. Head as wide as deep, subquadrate in transsection, 
one fourth of the total length, three tenths of the length without the caudal ; 
crown broad, flat to concave in front of the orbits. Snout blunt, large, wide 
and long, twice as long as the eye, slightly turned upward at the mouth. 
Mouth wide. Teeth conical, slender, hooked ; outer series larger, in open 
order ; pharyngeal groups much reduced in size, shoulders present or absent. 
Eye rather large, twice in snout, twice in forehead ; two elevenths times in 
head. Scales small, harsh. Intestine one and one half times the total 
length of the fish. Dorsal originating in the middle of the total length, 
longer in base and shorter in rays than anal. Anal origin a little farther 
back than that of dorsal, oviduct extending a short distance on first ray. 
Ventrals small, reaching anal. Pectorals medium, reaching bases of ventrals. 
Caudal large, deep, subtruncate. Peritoneum black. Largest specimen 
three and three fourths inches in length. 
Back brownish olive, belly silvery white. Flanks crossed by twelve to 
twenty-two bands of brown separated by silvery, varying from mere streaks 
to bands broader than the interspaces. In such cases as have wide bands 
these may posteriorly cross the lower surface. The convolutions of the intes- 
tine and the reduction of the pharyngeals indicate habits differing from those 
of the majority of the genus. This is not the species to which the name 
zebrinus was first applied. 
Kansas. 
Fundulus majalis. 
Plate II. Fig. 5-6, teeth; Plate IX. 
Mayfish Schoepff, 1788, Schr. Ges. N. Fr., VIII, 178. 
Cobitis majalis Walb., 1792, Art. Gen. Pise., 12; Donnd., 1798, Beytr., III, 582. 
Pecilia majalis Bl. Sehn., 1801, Syst-, pp. li, 458. 
Esox flavulus Mtch., 1815, Tr. L. & P. Soe. N. Y., I, 439. 
Cyprinodon flavulus Val., 1828, Hamb. Obs. Zool., II, 164, pl. 52, fig. 3,6, 7; Wagn., 1828, Isis, XXT, 
1056; Guer., 1838, Icon., 29, pl. 48, fig. 8; Rich. 1837, R. 6 Brit. Assoc., 213; Val., 1840, R. An. Ill, 
Poiss., 229, pl. 95, fig. 5. 
Hydrargyra flawula Stor., 1839, Mass. Fish, 95, — 1846, Syn., 180, —Mem. Am. Ac., IT, 432, — 1855, 
Mem. Am. Ac., V, 294, pl. 23, fig. 5-6, — 1867, Mass. Fish, 131, pl. 28, fig. 5-6; Ayr. 1848, J. B. N. H. 
S., IV, 267; Lins., 1844, Am. Jour., XLVII, 68; Bd., 1855, Ninth Rep. S. Inst., ext. p. 30; Gill, 1856, 
Rep. 8. Inst., 264. 
Hydrargyra formosa Stor., 1837, P. B. N. H.S., I, 76. 
Hydrargyra trifasciata Stor., 1837, J. B. N. H. S., I, 417. 
Hydrargyra vernalis Val., 1846, C. V. Poiss., XVIII, 206, pl. 531, fig. 2; Blkr., 1860, Cypr., 486. 
Hydrargyra majalis Val., 1846, C. V. Poiss., XVIII, 207 ; Blkr., 1860, Cypr., 486; Gill, 1861, N. A. 
Fish, 52, — 1865, Can. Nat., ext. p. 16, —1878, N. A. Fish, 31; Put., 1863, B. M. C. Z., p. 13; Bd., 1873, 
R. U.S. F. C., I, 826; Yarr., 1877, P. Phil. Ac., 214; Jor. & C., 1877, B. Buf. Soc., III, 141; Jor., 1878, 
