154 REPORT OF NEW JERSEY STATE MUSEUM. 
Genus ExociossuM Rafinesque. 
The Cut Lips Minnows. 
Exoglossum maxillingua (Le Sueur). 
IPAEINTND) BIE 
Cut Lips Minnow. 
This peculiar little minnow may be distinguished at a glance 
from any of the others by its trilobate mandible. 
I have never seen any New Jersey examples and include it on 
the authority of Mr. Eugene Smith, who found it at Peckman’s. 
Brook, where the Morris Canal crosses the brook near Little 
Falls, in Passaic County. 
Exoglossum maxillingua FE. Smith, Science, XXII, July, 1905, 
Peruri: 
Family CATOSTOMATID. 
The Suckers. 
Body oblong or elongate, usually more or less compressed. 
Belly not serrated. Head more or less conical. Eye small. 
Mouth large or small, usually protractile and with fleshy lips. 
Margin of upper jaw formed in middle by small premaxillaries, 
and on side by maxillaries. Jaws toothless. No barbels. Nos- 
trils double. Opercles normally developed. Gill-membranes 
more or less united to isthmus, restricting gill-membranes to 
sides. Gills 4, a slit behind fourth. Pseudobranchie present. 
Branchiostegals 3. Lower pharyngeal bones falciform, armed 
with a single row of numerous comb-like teeth. Alimentary 
canal long. Stomach simple. No pyloric cceca. Air-vessel large. 
divided into 2 or 3 parts by transverse constrictions, not sur- 
rounded by a bony capsule. Scales cycloid, large or small. Head 
naked, fins not scaly. Latetal line decurved, sometimes wanting. 
Dorsal fin comparatively long, of 10 to 50 rays without true 
spine. Anal fin short. No adipose fin. Caudal fin more or less 
