144 REPORT OF NEW JERSEY STATE MUSEUM. 



space 2j^ ; first branched dorsal ray i% ; first branched anal ray 

 i^ ; upper caudal lobe i ; least depth of caudal peduncle 2V10 ; 

 pectoral i^ ; ventral iVt^ pharyngeal teeth 2, 4-4, 2. Body 

 compressed, rather short, anterior dorsal region a little swollen, 

 and lower profile rather evenly convex. Caudal peduncle a little 

 elongate. Head compressed, rather heavy and obtuse. Snout 

 convex, rather blunt. Eye small, anterior, and circular. Mouth 

 nearly horizontal, or but little inclined, and upper jaw projecting 

 a little beyond lower. Maxillary not quite reaching orbit, and 

 premaxillary level with lower portion of orbit. Nostrils superior, 

 close together, and near front of eye above. Interorbital space 

 broad and a little convex. Gill-rakers 2 + 6, short points. 

 Scales on sides and along lateral line narrowly imbricated, those 

 before dorsal rounded and crowded. Tubes in lateral line simple, 

 well decurved. Dorsal inserted nearer tip of snout than base of 

 caudal, first branched ray longest, and fin when depressed reach- 

 ing about half way to base of caudal. Anal inserted about mid- 

 way between last third of pectoral and base of caudal, margin 

 straight and first ray longest. Caudal deeply emarginate, lobes a 

 little rounded. Pectoral reaching about four-fifths of space of 

 ventral. Ventral inserted opposite origin of dorsal, and reaching 

 vent, which is close in front of anal. Color grayish-blue above, 

 scales with dusky edges. A bronzed line on each side along back. 

 Belly and lower surface silvery, becoming rosy in spring. Dorsal 

 dusky and caudal similar. Lower jaw and predorsal region to 

 tip of snout covered with small tubercles. Length 5j4 inches. 

 New Jersey. 



Like the preceding one of our abundant minnows. It is found 

 in the same localities and has much in common. Also in the 

 spring the male assumes a very different aspect. The head is 

 found covered with numerous horny excrescences, and the fin-rays 

 become enlarged and expanded. They are also charged with very 

 brilliant coloring matter, or pigment, of bright red. The sides 

 of the body are more or less rosy, and the entire coloration is 

 emphasized or pronounced. They are very pretty, and are found 

 with precisely the samie habits as the silver fin, the males often 

 Imnching up ]>y themselves in the riffles. At other times the larg( 



