145 



the abdomen, and the rays of the former are greatly thick- 

 ened. Length, 1 to 3 inches. 



Fin-rays :—D-. 8 ; P. 15 ; V. 8 ; A. 8 ; C. 19. 



Uhiniclithjs atronasus, Mitchill, Lit. & Phil. Trans. Xew 

 York, I p. 460; Guenther, VTI, p. 191. 



Argijreus atronasus, Storer, Mem. Am. Ac. V, 1855, p. 



288, pi. 21, fig. 4. 



Leuciscus atronasus, Delvav, New York Fauna, Fish, p. 

 205, pi. 23, fig. 69. 



This pretty little fish delights in the Trout streams, in 

 their small, shallow basins. It is also common in many of 

 the springs and streams running therefrom in the central 

 parts of Baltimore and Carroll counties. It ivS a favorite for 

 aquaria. 



Acad. Coll. S. I. 



2— A, nasutus, 



Black Chub. 



This species is larger and more elongate than the last, with 

 a most prominent and flattened muzzle. It is of a general 

 olivaceous color, i3aler below, with numerous brown dots, 

 sometimes extending over the sides of the belly, and almost 

 blackening the upper surface. The lateral band of the atro- 

 xasus is never seen. The lips and parts of cheek of the males, 

 with the paired fins and the caudal, are of a bright crimson 

 in Spring. Length, 3i inches. 



Fin-rays:— D. 1. 8; P. 15; V. 8; A. 1. 1; C. 19. ' 

 Leuciscus nasutus, Ajres, Boston Journ. Nat. Hist. IV, p. 

 299, pi. 13, fig. 3; Storer, Mom. Amer. Acad. V, 1855, p. 



289, pi. 22, fig. 1. 



Fildniclitliys nasutus, Agassiz, Lake Superior, Guenther, 

 VII, p. 189. 



Anjyreus nasutus, Cope, Journ. Acad. Nat. Sc. Philadel., 

 XIII, p. 369, pi. 12, fig. 5. 



It lives in the small streams, chiefly in their rocky, rapid 

 and grassy parts, but is only taken singly. Seems to belong 

 to the clear wateis of the higher levels not remote from the 

 mountains. 



Acad. Coll. S. 1. 



STILBE, DeKay. 



S. americana. 



Dacs, Shiner, Chub, or Variegated Bream. 



Body much depressed, deej); its depth being about onr- 

 Jhirdof the tof;)! b-ngtli (without caudal). Head very small. 

 12 



