1918.] NATURAL SCIENCES OF PHILADELPHIA. 55 



Head moderate, well compressed, evenly constricted above and 

 below, profiles similarly inclined. Snout convex over surface, very 

 slightly so in profile, length f its width. Eye large, close to upper 

 profile, and hind pupil edge nearly midway in head length. Mouth 

 well inclined, gape moderate, and jaws about even. Maxillary 

 extends back slightly beyond front eye edge, though not quite to 

 that of pupil, upper edge entirely slips below preorbital. Row, of 

 moderate, even, rather crowded, compressed incisors in each jaw, 

 end of each tooth truncate, and whole forms even cutting-edge. No 

 teeth on tongue or mouth roof. Tongue depressed, pointed, free. 

 Inner buccal folds broad. Lips fleshy, moderately wide. Nostril 

 slightly behind middle in snout length. Interorbital convex. Pre- 

 orbital width Sj in eye. Hind preopercle edge slopes well forward, 

 so that angle would fall nearly opposite center of eye, and like lower 

 preorbital and suborbital edges, entire. 



Gill-opening forward opposite front pupil edge. Rakers 7 + 16, 

 lanceolate, longest about long as gill-filaments or 3 in eye. Pseudo- 

 branchiae slightly longer than gill-filaments. Isthmus narrowly 

 constricted, trenchant, branchiostegal membrane moderately broad 

 across. 



Scales finely ctenoid, narrowly imbricated, in even lengthwise 

 rows, smaller along body edges. Fins all scaly basally. Supra- 

 scapula thin, entire, small. Cheek with 4 rows of scales. Opercle 

 with moderate scales, small on interorbital, and still smaller on upper 

 part of snout. Moderate scales on suborbitals and preorbital. Chin, 

 lips, and narrow strip on front of snout naked, though mandible 

 scaly. Scaly ventral flaps damaged. Lateral line with upper 

 branch curving up at first, and then largely concurrent with upper 

 limit of general squamation on dorsal fins, and ends below soft 

 dorsal origin. Tubes simple, large, extend nearly over first half in 

 scale exposure. Pores in horizontal section inconspicuous, small, 

 and one in middle of each scale exposure, not on caudal base. 



Spinous dorsal inserted opposite pectoral origin, spines rapidly 

 graduated up to third, then subequal, fin edge well notched. - Soft 

 dorsal origin nearl}^ at last third between upper hind preopercle 

 edge and caudal base, rays graduated up to sixth and seventh, wliich 

 form sharp point behind. Spinous anal inserted well before soft 

 dorsal, first spine about 3 in second, or fin origin nearly midway 

 between ventral origin and caudal base. Soft anal like soft dorsal. 

 Caudal (damaged) apparently little emarginate behind. Pectoral 

 reaches anal. Ventral inserted below middle of pectoral base, 



