THE FISHES OF NEW JERSEY. 159 
with broad free margin, and furnished with as many as Io series 
of papillae. Lower lip 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 24 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 9% 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 tenacious 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, Geol. 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 (Hylomyson) nigricans Abbott, Am. Nat., IV, 
1870, p. 386. 
Genus ERtmyzon Jordan. 
The Chub Suckers. 
Erimyzon sucetta oblongus (Mitchill). 
Mullet. Chub Sucker. 
Head.a5¢; dept ainin) D>: 1V,, 12,4 ee TI 16) (1- scales 42 
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 44%; interorbital space 2% ; 
third branched dorsal ray 1%; second branched anal ray 1%; 
