THE CYPRINODONTS. 121 
1876, B. 1 Ill. Lab., 42; Jor., 1877, P. Phil. Ac., 67, —1878, B. 2 Ill. Lab., 52, —1887, R. U.S. F. Com., 
837; Jor. & C., 1877, B. Buf. Soc., III, 142; Forb., 1878, B. 2 Ill. Lab., 78, 85, — 1883, B. 6, 72, 93; Hay, 
1883, B. U. S. F. Com., Il, 66; Gilb., 1885, P. U. S. Mus., VII, 208; Everm. & J., 1889, P. U. 8S. Mus., 
XI, 55; Eig., 1894, R. Ind. Biol. Surv., 94. 
Zygomectes (Micristius) dispar Jor., 1878, B. U. 8. G. Sur., 1V, 433, — 1878, Man. Vert., 264; Jor. & 
G., 1852, B. 16 U. S. Mas., 341. 
Zygonectes hieroglyphicus Ag., 1854, Am. Jour., 353, — Fish. Tenn. R., 15; Blk., 1860, Cypr., 485; Jor. 
& C., 1877, B. Buf. Soc., LIT, 142; Jor. & B., 1878, B. 12 U. S. Mus. 48; Jor. & G., 1882, B. 16 U.S. 
Mas., 341. 
Zygonectes (Micristius) hicroglyphicus Jor., 1878, B. U. 8. G. Sur., IV, 433. 
Zygonectes melanops Jor, 1878, B. 2 Ill. Lab., 52; Hay, 1881, P. U.S. Mas., III, 501; Bean, 1889, 
B. U. 8. F. Com., I, 206. 
Zygonectes inurus Jor. & G., 1882, B. 16, U. S. Mus., 892, — 1883, P. U.S, Mus., V, 143; Forb., 1883, 
B.6 UL Lab., 71, 93. 
Zygonectes craticula G, & B., 1883, P. U. S. Mus., V, 433; Jor., 1887, R. U.S. F. Com., 837. 
Zygonectes zonifer Jor. & M., 1885, P. U. S. Mus., V, 482; Jor., 1887, R. U. S. F. Com., 837. 
Zygonectes Escambia Bollm., 1887, P. U.S. Mus., IX, 463; Everm., 1893, B. U. 8. F. Com., 1891, 
p- 87; Everm. & K., 1894, B. U. S. F. Com., 1892, 78, $3, 90, 92, 107. 
B.5; D.8-9; A. 10-11; V. 6; P. 14-12; Ll. 34-36; Ltr. 11-12; 
Vert. 15+ 18. 
Form a little shorter than that of Z. olivaceus. Compressed from the 
head backward ; depressed on the head, crown and nape flattened. Outline 
less arched from snout to dorsal than from snout to anal. Head broad, about 
two sevenths of the length to the base of the caudal or two ninths of the 
total. Snout nearly or quite as long as eye, varying with age, slightly nar- 
rowed at the mouth, blunt. Mouth of moderate size, a trifle oblique ; lower 
jaws longer, firmly united; upper shorter, protractile. Teeth in bands, coni- 
eal, hooked, outer series larger; pharyngeal with a shoulder. Eye large, 
about as long as the snout, one third or less of the head, two thirds of the 
forehead. Scales large, extending upon the base of the caudal. Intestine as 
long as the body excluding head and caudal. Dorsal and anal of medium 
size and rounded margins, opposed, behind the middle of total length; dorsal 
smaller and originating a little farther back than the anal, the comparative 
position of the origin varying slightly with age and sex. The base of the 
dorsal extends little if any nearer the caudal than that of the anal. Caudal 
large, median rays longer, posterior border convex, almost pointed. Ventrals 
small, not reaching the anal. Pectorals small, reaching to, or a little beyond, 
a vertical from the bases of the ventrals. 
The northern variety, Z. dincolatus Ag., shows a tendency to more scales 
and fin rays than the southern or typical forms. 
Olivaceous, greenish, yellowish, reddish or brownish, lighter to silvery 
below, each scale with a brown more or less distinct spot, forming vitte. 
16 
