..The fishes of Illinois . J. & E., I, 167; N., 49(Ichthyobus); J., 65; F., 81 (Ictiobus cyprinus, part); L., 12. Body ovate, compressed, back much arched in adults; ventral linealmost straight; depth to 3 in length. Size small, seldom exceeding12 inches. Color light olive above, sides silvery, fins pale. Headmoderate, its length to 4, depth to , width 6 to in length ofbody; snout long, bluntly pointed, as in last species, to in head,usually less than ; nostrils well back, distance from anterior openingto end of snout greater than diameter of eye; mouth rather nar
..The fishes of Illinois . J. & E., I, 167; N., 49(Ichthyobus); J., 65; F., 81 (Ictiobus cyprinus, part); L., 12. Body ovate, compressed, back much arched in adults; ventral linealmost straight; depth to 3 in length. Size small, seldom exceeding12 inches. Color light olive above, sides silvery, fins pale. Headmoderate, its length to 4, depth to , width 6 to in length ofbody; snout long, bluntly pointed, as in last species, to in head,usually less than ; nostrils well back, distance from anterior openingto end of snout greater than diameter of eye; mouth rather narrow,slightly oblique, tip of lower lip far in nostrils; lips weaklyplicate, rather thick, the lower halves meeting in a sharp angle; inter-orbital space to in head; eye small, to in head. Dorsalrays 27 to 30, usually 27, the anterior ravs slender and elongate, some-times longer than base of fin. Scales 7, 39-40, 6; lateral line complete,usually somewhat flexuose. CARPIODES—CARP-SUCKERS 79. Fig. 19 This species, unlike the others of its genus, is most abundant innorthern Illinois and least so in the southern part of the state. Itis almost wholly wanting from our southern Illinois collections madewithin the area of the lower Illinoisan glaciation. Like the preceding-species, however, it is found chiefly in the smaller rivers and creeks,nearly twice as frequently in the latter as in the rivers of largersize. It ascends small streams freely at the time of the springfloods. In 1898 it spawned at Havana about April 15. The snoutof the male is tuberculate in the spawning season. CARPIODES THOMPSONI Agassiz(lake carp) Agassiz, 18SS, Amer. J. Sci. Arts, XIX, 76. J. &G., 119; M. V., 45 (Ictiobus); J. &E., I, 167; N., 49 (Ichthyobus); J., 65 (thomp-soni and (?) selene); F., 81 (Ictiobus cyprinus, part). Body elongate, subfusiform, the back little arched and the ventralline nearly straight, in general form and proportions very close to , depth to 3
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Keywords: ., bookcentury1900, bookdecade1900, bookidcu31924, booksubjectfishes
