..The fishes of Illinois . ches, the adults having much the appear-ance of young suckers. About 5 species known, confined chiefly to thecentral and southeastern United States. PHENACOBIUS MIRABILIS (Girard)(sucker-mouthed minnow) Girard, 1856, Proc. Ac. Nat. Sci. Phila., 191 (Exoglossum). J. & G,, 205; M. V., 63; J. & E., I, 303; N.,46 (teretulus liosternus); J., 61 (scopife-rus); F. I. 6, SS (scopiferus); 76: 18. The inferior sucker-like mouth, thick lips, small scales, and blackspot at base of caudal fin in this species will, taken together, distin-guish it from all otherminnows
..The fishes of Illinois . ches, the adults having much the appear-ance of young suckers. About 5 species known, confined chiefly to thecentral and southeastern United States. PHENACOBIUS MIRABILIS (Girard)(sucker-mouthed minnow) Girard, 1856, Proc. Ac. Nat. Sci. Phila., 191 (Exoglossum). J. & G,, 205; M. V., 63; J. & E., I, 303; N.,46 (teretulus liosternus); J., 61 (scopife-rus); F. I. 6, SS (scopiferus); 76: 18. The inferior sucker-like mouth, thick lips, small scales, and blackspot at base of caudal fin in this species will, taken together, distin-guish it from all otherminnows found in Illi-riois. Length 3h inches;form of bodv much asin the common red-horse(A^oxostoma aureolum),—the inferior mouth andfleshy lips adding to theFig. 39 resemblance, — fusiform, the back moderately ele-vated, depth to 5 in length; caudal peduncle about equal to head,its depth 2 to in its length. Color olivaceous, the sides with adull silvery luster overlying a dusky lateral shade; a distinct black. 33 3 tilg s in OA aw HDO Wo D PHENACOBIUS SUCKER-MOUTHED MINNOWS 159 caudal spot and a narrow vertebral streak, golden in life, when theshoulders are also dusted with gold specks; belly silvery; all scalesexcept those of belly sprinkled with minute black specks which be-come denser at edges of scales; cheeks and opercles silvery with somegreenish; pupil brilliant black; iris with a wide inner rim of gold aboveand silvery below, the outer portion being variegated light or darkgreen and gold with some silvery below; fins all pale/ Head subquad-rate in transverse section and flat above, short, to in length;width of head to in its length; interorbital space flat, to3 .3 in head; eye small, 3 .6 to ; nose nearly twice length of eye, 2 .3to 2 . 6 in head; mouth very small, wholly inferior and horizontal, the tipof the upper lip on level of chin and breast; maxillary 3 . 7 to in head,not reaching to orbit; lower jaw included; upper jaw provided w
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Keywords: ., bookcentury1900, bookdecade1900, bookidcu31924, booksubjectfishes
