I 



THE FISHES OF NEW JERSEY. 159 



with broad free margin, and furnished with as many as 10 series 

 of papilla. Lower Hp deeply incised. Interorbital space broad 

 and concave. Nostrils close in front of eye. Fontanel short. 

 Dorsal midway in length. Anal long, midway between base of 

 last dorsal ray and base of caudal. Caudal emarginate. Pectoral 

 broad, not quite reaching ventral, which is inserted a little before 

 middle of base of dorsal. Ventral reaching Yz of space to anal. 

 Color olivaceous above, whitish below. Back generally marked 

 with deeper cross blotches, irregular and less distinct in the old. 

 Lower fins reddish in life. Length 9J/2 inches. New Jersey. 



This large sucker reaches a length of 2 feet. The young are 

 considerably variegated with spotted sides. It is an inhabitant 

 of clear, .swift, rocky streams, and is less tenaciotis of life than 

 our other species. Though the specimen I described was labelled 

 from New Jersey, it is likely that the species only occurs in the 

 northwestern and northern regions. I have never noted it in 

 any of the smaller coastwise streams. Dr. Abbott states that it 

 is found in Crosswicks Creek in water that was more or less 

 muddy. This is at variance with my experience in other places, 

 where it was found almost entirely in perfectly clear cold streams. 



Hylomyzon nigricans Abbott, Ceol. N. J., 1868, p. 825. — Ab- 

 bott, Amer. Nat., IV, 1870, p. 113. — Abbott, 1. c, p. 389. 



Hypentelium nigricans Abbott, Nat. Rambles, 1885, p. 479. 



Catostomus (Hylomyzon) nigricans Abbott, Am. Nat., IV, 

 1870, p. 386. 



Genus Erimyzon Jordan. 

 The Chub Suckers. 



Erimyzon sucetta oblongus (Mitchill). 



Mullet. Chub Sucker. 



Head 3^/5; depth 2^/10; D. iv, 12, i; A. iii, 6, i; scales 43 

 in lateral line to base of caudal, and 3 more on latter; about 16 

 scales between origins of dorsal and ventral; about 16 scales 

 before dorsal; snout 2 in head; eye 4}^ ; interorbital space 2% ', 

 third branched dorsal ray 1%; second branched anal ray ij^; 



