1912.] NATURAL SCIENCES OF PHILADELPHIA. 39 



Head very large, deep, and with mandible closed anterior profile 

 nearly evenly convex. Upper surfaces approximating like those of 

 back, and lower well swollen convexly till much wider. Snout short, 

 little inclined from horizontal forward, length about § its width. 

 Eye small, rounded, high, lateral, anteriorly below second dorsal 

 spine. Mouth large, wide, nearly vertical. Premaxillaries well 

 protractile. Maxillary long, nearly vertical, its hind lower edge 

 about opposite front eye edge, and greatest distal expansion but 

 trifle less than eye. Upper lip thin, tough, and lower thicker though 

 also tough. Teeth small, sharply pointed, rather slenderly conic 

 and in rather narrow bands in jaws. No teeth on median line of 

 mouth roof, though 2 patches of teeth, similar to those in jaws, 

 in each palatine region. Two small patches of similar pharyngeal 

 teeth above and 2 patches also below. Tongue large, broad, de- 

 pressed, free in front and along sides, smooth, and front edge convex. 

 Mandible not very powerful, broad, with slight symphyseal knob 

 in front, and rami but moderately expanding at their posterior 

 articulations. Nostrils small, obscure, about last f between eye 

 front and edge of upper jaw. Interorbital slightly convex. 



Gill-opening small slit at lower pectoral base well before middle 

 in entire length of fish. 



Body very finely roughened everywhere, except at lower surfaces 

 of pectorals and ventrals. Tubercles in many regions bifid. Tuber- 

 cles on head above and 1. 1. anteriorly rather large, or as spinescent 

 clusters. A smooth area on interorbital between second and third 

 spines. Extending down along preopercular region some obscure 

 spinescent clusters. No cutaneous flaps, or if a few present very 

 inconspicuous. L. 1. scarcely evident, except anteriorly, and even 

 there obsolete. 



Bait very slender and not extending beyond middle of third 

 depressed dorsal spine, bulbous and bifid at end, and each division 

 with a few short filaments. Second dorsal spine inserted close after 

 bait, largely free, mobile, though not depressible back to origin of 

 third dorsal spine. Latter with only end mobile, united behind for 

 large part by broad basal membrane, and depressible spine not 

 reaching back to origin of rayed dorsal. Soft dorsal rather high, 

 long, its margin very unevenly gashed as some rays are inserted 

 nearer one another than to others. Anal small, well posterior, and 

 extending slightly further back on caudal peduncle, median rays 

 longest with edge of fin slightly gashed in places. Caudal large, 

 rounded behind with median rays longest. Pectoral moderate, 



