147 



Leuciscus /unduloides, Guenther, YII, p. 25G. 

 Caught in Piney Run, Carroll county. It seems to be ra- 

 ther uncommon. 

 Acad. Coll. S. I. 



2— C, margarita. 



Head four times in body to base of caudal fin, equal the 

 greatest depth. Coloration, above light olive, without dorsal 

 line, but darker shade at origin of dorsal fin; sides plumbeous 

 silvery, below bright crimson (in midsummer). Muzzle 

 blackish; fins unspotted. 



Fin-rays:— D. 1. 8; P. 17; V. 8; A. 1. 8; C. 19. 



CUnostomus margarita, Cope, Proc. Ac. Nat. Sc. Phil. p. 

 377, pi. 13, fig. 1. 



Leuciscus margarita, Guenther, VII, p. 24G. 



Three specimens from Piney Run, Carroll county. It has 

 not yet been found in the streams near Baltimore, but is re- 

 ported to be in the Potomac River, north of Washington. 



Acad. Coll. S. I. 



ALBUllXELLUS, Girard. 



A. rubeilus, 



This elegant little fish has a slender, compressed body, the 

 height of which is contained six times in the total length 

 (without caudal); the back is somewhat more convex than 

 the tail. The back is of a yellowish-green, with the outlines 

 of the scales black; the sides have a brilliant silvery reflec- 

 tion, with a more marked median band; the fins are trans- 

 parent, pale yellow. 



Fin-rays:— D. 1. 9; P. 11; V. 8; A. 2. 10; C. 19^. 



Alburnellus ruhellus, Agassiz, Lake Super,, p. 364, pi. 3, 

 fig, 1—3; Cope, Proc. Ac. Nat. fee. Philad. 1864, p. 282. 



Leuciscus ruhellus, Guenther, VII p. 254. 



Inhabits Pipe Creek, in Carroll county, and seems to be 

 common there. No specimens have thus far been found in 

 the streams near Baltimore, and it is no doubt a species be- 

 longing to the mountain region. 



Acad. Coll. 



HYPSILEPIS, Baird. 



1— H, kentuckiensis. 



White-Fin. 



The height of tlie body is contained four times in the total 

 length, (without caudal), the length of the head four times 



