1910.] NATURAL SCIENCES OF PHILADELPHIA. 653 



bands of obtuse molar-like teeth. Tongue thick, broadly triangular, 

 edges narrowly free. Mandible depressed, rami not elevated inside 

 mouth. Nostrils together, nearer eye than snout tip, anterior small 

 pore with fleshy rim exposing posterior in narrow crescent. Inter- 

 orbital space slightly concave. Supraorbital ridge rather prominent, 

 especially anteriorly. Hind edge of preopercle inclined posteriorly, 

 and obsolete ridge inclined anteriorly. Opercle rather small. 



Gill-opening forward about opposite eye center. Rakers 4 + 9 

 short depressed finely asperous tubercles. Filaments about f of eye. 

 Pseudobranchise about § of eye. Isthmus rather broad, thick, lower 

 surface level. Branchiostegals about 14, each indicated on branchios- 

 tegal membrane by slight incision on its lower surface. 



Scales cycloid, inner edges mostly crimped, outer or exposed edges 

 thin or membranous and ragged, marked submarginally with a con- 

 current vertical ridge or striation, the true edge of the scale. Scales 

 disposed in even horizontal series, and all over trunk of about uniform 

 size. All fins densely covered with minute scales. Pectoral depressi- 

 ble below a horizontal scaly ridge, and basally covered with moderate- 

 sized scales. Ventral with free pointed axillary scaly flap, length 

 about § fin, and moderately small scales on its base. Lateral line 

 complete, nearly midway along side of body and straight. Tubes 

 simple, horizontal, only pore at hind end exposed, opposite middle of 

 emargination of hind or vertical striation on scale. 



Dorsal origin about midway between snout tip and caudal base, 

 first branched ray highest, though but trifle longer than last which 

 is filamentous, otherwise branched rays graduated clown to penul- 

 timate which is shortest. Anal small inserted behind depressed dorsal, 

 or nearly at last f- in space between ventral origin and caudal base. 

 Pectoral small, pointed, not quite half way to ventral. Ventral 

 inserted nearly opposite seventh dorsal ray base or about midway 

 between pectoral origin and last anal ray base. Caudal forked, small, 

 lobes similar (ends damaged), apparently about equally pointed and 

 also sharp. Vent about opposite depressed ventral tip. 



Color in alcohol faded brilliant silvery-brassy or brownish, scales 

 all quite bright. Fins and head also all same shade, and all more or 

 less uniform, dorsal and caudal scarcely darker. Dull dusky streak 

 over snout just behind its tip to beginning of preorbital groove. Head 

 paler below than above. Iris dull brownish. 



Length 15 inches (caudal damaged). 



Type, No. 1597, A. N. S. P. Santo Domingo, West Indies. Prof. 

 W. M. Gabb. 



