THE FISHES OF NEW JERSEY. 153 
olivaceous, basally red. Inside of gill-opening russet and black- 
ish. Iris white except where crossed by black lateral band. 
Cyprinus atronasus Abbott, Proc. Acad. Nat. Sci. Phila., 1861, 
Pp. 95. 
Argyreus atronasus Cope, Trans. Amer. Philos. Soc. Phila., 
XIII, 1869, p. 369.—Abbott, Geol. N. J., 1868 (1869), p. 824.—- 
Abbott, Am. Nat., [V, 1870, p. 100. 
Rhinichthys atronasus Abbott, Am. Nat., VIII, 1874, p. 328.-- 
Jordan, An. N. Y. Acad. Sci., I, 1879, p. 108.—Abbott, Nat. 
Rambles, 1885, p. 479. 
Genus Hysopsis Agassiz. 
The Horny Heads. 
Hybopsis kentuckiensis (Rafinesque). 
This chub may be distinguished from the other minnows with 
a barbel at the extremity of the maxillary chiefly by its larger 

Horny Head. Hybopsis kentuckiensis (Rafinesque). 
scales and fewer teeth, the inner row never more than one and 
frequently absent. 
The adult male is a beautiful animal, and in the spring the 
snout or nose is greatly swollen, reminding one of the hooded 
seal. The young have a dark longitudinal band and are dull 
olivaceous in color. This fish is only known from Mr. Eugene 
Smith’s record of two examples from the Passaic River. 
Hybopsis kentuckiensis E.. Smith, Proc. Lin. Soc. N. Y., IX, 
LEO7,, P27. 
