1903.] NATURAL SCIEN'CES OF PHILADELPHIA. 173 



third spine If ; fourth dorsal ray 1| ; base of anal 2^ ; fourth anal ray 2| ; 

 caudal 1^; least depth of caudal peduncle 3^; base of pectoral 2+; base 

 of ventral 3^. 



Body deep, compressed, and the greatest depth about midway be- 

 tween the base of the first dorsal spine and the first dorsal ray. The 

 back is elevated and the belly round and swollen. Caudal peduncle 

 compressed, rather small. 



Head very large, deep, with a steep declivous profile. The lower 

 sides of the head about the greatest depth of the body, also its greatest 

 width. Snout very short, steep, rough and broad. Eye small, very 

 high and anterior. Mouth very large, nearly vertical, and the lower 

 posterior margin of the maxillary hardly reaching below the front 

 margin of the eye. Mandible very broad and with a slight knob at 

 the symphysis. Lips rather thick. Teeth minute, and in rather 

 broad bands in the jaws. Vomer and palatines with bands of minute 

 teeth. Tongue large, thick, occupying the whole of the floor of the 

 mouth, and with a patch of large^'short coarse teeth medianly. Nos- 

 trils small, obscure, close together, and near the edge of the snout. 

 Interorbital space broad, and rough. Top of the head below the 

 third dorsal spine swollen. 



Gill-opening a small pore at the lower base of the pectoral, and 

 nearty in the middle of the length of the entire fish. 



Peritoneum silveiy. 



Anus near the front of the' anal fin and with a small genital papilla 

 posterior. 



Body very finely roughened everywhere, except on the lower 

 surfaces of the pectorals and ventrals. Tubercles on the head, and 

 in the lateral line anteriorly, not very conspicuous. 



Bait with a large tuft' of filam.ents at its extremity. Second dorsal 

 spine closely following, and united behind with a broad roughened 

 membrane with the interorbital space. Third dorsal spine clavate 

 beginning at the tip of the|;depressed second spine or a little behind the 

 eye, and also united to the occiput with a broad rough membrane. 

 Soft dorsal rather high and long, and its margin straight. Anal small, 

 very posterior, and extending back rather far on the caudal peduncle. 

 Caudal large, broad and the upper rays the longest. All of the vertical 

 fins rounded. Pectoral large, and the tips of the rays projecting a 

 little beyond the membranes. Wntral similar to pectoral. 



Color in alcohol pale or dusky gray-brown, more or less uniform, 

 and marked everywhere with small round black ocelli, many scarcely 

 larger than the pupil of the eye. The lower surfaces of the pectoral 



