Cope.] 484 [June 7, 
nearly to the end of the fin in one specimen .75 the distance in another. 
Color, brownish golden. Length, one foot. 
%5. CARPIODES CYPRINUS, Lesueur. 
Catostomus do., Lesueur, Journ. Ac. Nat. Sci. Phil. I, 91, Tab. Car- 
piodes, Agassiz, 1. c. Giinther, Cat. Brit. Mus. VII, 24. Carpiodes vacca, 
Agass., l. c. 
This is another elongate species with shorter dorsal radii, and rather 
large scales. In six small specimens there are 7 rows above the lateral 
line, and in two young and one adult, six. Length of head 33 times in 
length same and body ; eye small, .25 times in interorbital width, nearly 
six times in head in adult of a foot in length, 4.5 times in young of five 
inches. Muzzle quite prominent, but obtuse. Front scarcely concave 
between orbits or in front of nasals (thus differing from most of the other 
species). End of mandible extending beyond line of nares. Lips faintly 
plicate. Supraoccipital region elevated, little ridged. Anterior dorsal 
rays midway between origin of caudal and end of muzzle. Color silvery, 
dorsal fin black, paired fins white-margined. 
Common in the tributaries of the Chesapeake and Potomac, rare in 
those of the Delaware in Pennsylvania. 
C. damalis, Gird., from the Platte R., is very near this species. 
Carpiodes nummifer, Cope. 
Species nova. 
The largest species of the genus, from the Wabash River, Indiana. 
The detailed characters have been given in the synopsis of the species. 
The form is characterized by elongation, and the small proportions of the 
head. The body is compressed, and the dorsal line elevated to the first 
dorsal ray, which is considerably nearer the end of the muzzle than the 
origin of the caudal fin. Its rays are more numerous and the anterior 
shorter than in any other species here enumerated. The bony and first 
cartilaginous rays are stouter than in any other species, the latter presents 
no segmentation on the surface for the basal half. 
The orbits are more anterior than in other low-finned Carpiodes, the 
middle line of the cranium falling .25 inch behind the orbit in a specimen 
of 20 inches length. Diameter 4.6 in head, nearly twice in interorbital 
width. Scales 7—36—5. Muzzle short, rather obtuse but projecting 
much beyond mouth. Symphysis mandibuli extending to nares. 
Color of scales an olive silver or nickel color, whence the name nummi- 
fer, money-bearer. Sides of head yellow. Length 18 and twenty-four 
inches at least. Wabash River, Indiana; three specimens. 
NOTURUS, Rafinesque. 
76. NoTURUS MARGINATUS, Baird. 
From the Catawba and Yadkin rivers. 
