134 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



and more or less crowded forwards, but often showing various irregulari- 

 ties in arrangement, about 43 (39-45) iu a longitudinal series and 15 

 (14-10) in a transverse series between the ventrals and the dorsal. Fin- 

 rays somewhat variable, the dorsal with 11 (10-13) developed rays, the 

 anal with 7, and the ventrals with 9 (rarely 8), Coloration varying with 

 age; never distinct series of black spots along the rows of scales. 

 Young with a broad black lateral band, bordered above by paler. In 

 some specimens from clear water this band is of a jet-black color and 

 very distinct ; in others it is duller. Later this band becomes broken 

 into a series of blotches, which often assume the form of broad trans- 

 verse bars. In adult specimens these bars disappear, and the color is 

 nearly uniform brown, dusky above, paler below, everywhere with a 

 coppery or brassy, never silvery, lustre. Tlie fins are dusky or smoky 

 brown, rarely reddish-tinged. Sexual differences strong. The males 

 in spring with usually three large tubercles on each side of the suou't, 

 and with the anal fin more or less swollen and emarginate. Adult 

 specimens with the back gibbous and the body strongly compressed, 

 in appearance quite unlike the young. Maximum length about 10 

 inches. New England to the Eocky Mountains, south to Texas ; very 

 abundant. 



(Cyprinns siicetta Lac. Hist. Nat. Poiss. v, GOG, 1803: Cyprhnis ohlongus Mitcli. Traus. 

 Lit. & Phil. Soc. 1, 459, 1814 : Moxostoma oUonymn Giiutlier, vii, 21 : Catosiomus 

 fjibhosm Storer, Fisli Mass. 291 ; Jordan, Mau. Vert. 319; Jordau, Bull. U. S.Nat. Mus. 

 xii, 144.^ 



150. E. gooalci Jordan. 



Body oblong, the back more elevated, the body deeper and more com- 

 pressed than iu the preceding, the greatest depth in advance of the 

 dorsal fin being contained about 2^ times in the length. ^N^ape less gib- 

 bous than in E. sucetta. Head quite small and short, the large eye 

 being almost exactly midway in its length. Its length 4.} in that 

 of the body. Eye 4.| in head. Interorbital space rather narrow, 

 transversely convex, less than half the length of the head. Mouth 

 small, protractile forwards, the lower jaw oblique ; lips as in the pre- 

 ceding. Scales large, much larger and much more uniform in their 

 imbrication than in E. sucetta, 36 iu a longitudinal series, and about 

 13 in a transverse series from the 'Sientrals to the dorsal. Dorsal fin 

 high, of 12 developed rays; anal moderate, with 7; ventrals large, 

 with 10. Color dark olivaceous above; each scale along the sides re- 

 flecting pale from the strongly striated middle part, these giving in cer- 



