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. 



Cyprinns atronasus Ahhott, Proc. Acad. Nat. Sci. Phila., 1861, 



P- 95- 



Argyreiis atronasus Cope, Trans. Amer. Philos. Soc. Phila., 



XIII, 1869, P- 369.— Abbott, Geol. N. J., 1868 (1869), p. 824.— 

 Abbott, Am. Nat., IV, 1870, p. 100. 



Rhimchthys 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 Hybopsis Agassiz. 



The Horny Heads. 

 Hybopsis kentuckiensis (Rafinesqiie). 



This chub may be distinguished from the other minnows with 

 .a barbel at the extremity of the maxillar}^ chiefly by its larger 



Horny Head. Hybopsis kentuckiensis (Rafinesqiie). 



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 greatl}- 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, 

 1897, p. 2y. 



