..The fishes of Illinois . n shallow water. He found them throughoutJune and a part of July, one of the parents being, as a rule, on guardabout the nest. The snout of the male in the breeding season bearsthree rows of large tubercles, seven in one row at the margin of theupper lip, five in a row directly above this, ahd four in an upper row,two of them between the nostrils and one on each side between thenostril and the eye. Genus SEMOTILUS Rafinesoue Oallfishes) Body robust; mouth terminal; upper jaw protractile; a small barbelon the upper side of the maxillary just in front of its extremity
..The fishes of Illinois . n shallow water. He found them throughoutJune and a part of July, one of the parents being, as a rule, on guardabout the nest. The snout of the male in the breeding season bearsthree rows of large tubercles, seven in one row at the margin of theupper lip, five in a row directly above this, ahd four in an upper row,two of them between the nostrils and one on each side between thenostril and the eye. Genus SEMOTILUS Rafinesoue Oallfishes) Body robust; mouth terminal; upper jaw protractile; a small barbelon the upper side of the maxillary just in front of its extremity (not atits tip as in most American minnows); teeth 2, 5-4, 2, hooked, withoutgrinding surface; intestine short; peritoneum pale; dorsal rays 7 or 8;anal rays 8; scales 45 to 60 in lateral series; lateral line large, 6 to 18 inches. Two species, 5. dtromaculatus being foundfrom Maine to Wyoming, and S. corporalis, the large chub or fallfish ofthe Eastern creeks, being confined to the east of the Fig. 25 SEMOTILUS ATROMACULATUS (Mitchill)(horned dace; creek chub) Mitchill, 1818, Am. Month. Mag., II, 324 (Cyprinus). G., VII., 269 (Leucosomus corporalis); J. & G., 221 (corporalis); M. V., 66; J. & E., I, 222; N., 45 (corporalis); J., 62 (corporalis); , 75 (corporalis); F. F., I. 6, 88 (corporalis); L., IS. 122 FISHES OF ILLINOIS Length usually 6 to 8 inches, sometimes reaching a length of a foot;body rather elongate, but robust, heavy forward, the back gently archedin front of the dorsal fin; depth to in length; caudal peduncleshorter than head, its depth 2 to 2 .5 in its length. Color dusky bluish-olive above; tinges of light purplish on sides as far down as lateral line;a faint plumbeous lateral band, somewhat more distinct towards end ofcaudal peduncle; a faint vertebral streak and a dark bar behind opercle;sides below lateral line greenish gray to silvery; belly silvery; dorsal finwith a distinct black blotch at base, between first and t
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Keywords: ., bookcentury1900, bookdecade1900, bookidcu31924, booksubjectfishes
