1914.] NATURAL SCIENCES OF PHILADELPHIA.. 253 



•convexly into much greater inclination from mandibular articulation. 

 Snout convex in profile and over surface, length about half its width, 

 and broadly convex as viewed from above. Eye large, high, a 

 trifle deeper than wide, and placed about first | in head, measured 

 from upper jaw tip. Pupil vertically ellipsoid, large. Adipose- 

 eyelid slightly developed in front and behind. Mouth large, superior, 

 broad. ^Maxillary vertical, extends down well below lower eye edge, 

 only lower portion exposed, which shows many deep vertical striae, 

 and greatest expansion 2f in eye. Lips firm, rather thin. Upper 

 jaw with a general series of small equal simple conic teeth, extending 

 •on maxillaries nearly to their hind or lower end. Upper jaw teeth 

 interrupted in premaxillary region by 4 equally spaced enlarged 

 .simple conic canines, of which inner pair slightly larger and obso- 

 letely barbed. Mandible with 6 large conic barbed canines, and 

 each outer one largest. Innermost pair of mandibular teeth smallest, 

 though separated slightly more than those medianly in upper jaw, 

 .also smaller than latter. On sides of mandibular rami a few equal 

 small obscure conic teeth, these also continued irregularly in places, 

 -as behind sj^nphysis in an inner series. Inner buccal folds Inroad. 

 Tongue broad, depressed, rounded and well free in front. Mandible 

 large, well protruded in front, powerful, and rami moderately elevated 

 in mouth. Nostrils together, anterior simple pore with cutaneous 

 hind edge exposing larger posterior in crescent, frenum formed 

 about level with upper eye edge. Interorbital broadly convex. 

 Preorbital ..narrow and long. Infraorbital a little shorter than 

 preorbital elements, covers greater part of cheek, surface with radi- 

 ating strise, its width about half its length and latter about equals 

 •eye, Preopercle ridge and hind edge inclined well forward, and 

 latter ends in broad strong pointed spine projecting obliquely down 

 posteriorly, Opercle deep, upper hind edge scarcely emarginated, 

 smooth, except deep transverse median groove. Bony exposure of 

 shoulder-girdle with fine strise, and deeply notched to receive base 

 of pectoral fin. Suprascapula entire, small. Occipital and parietal 

 fontanels long and distinct. Occipital process extends back opposite 

 hind edge of exposed shoulder-girdle. 



Gill-opening extends forward opposite front eye edge, Gill- 

 rakers III 3 + 10 II, strong, lanceolate, and 2f in gill-filaments, which 

 latter about 2 in eye. Isthmus broadly convex, constricted in front. 

 Branchiostegals large, subequal, broad. 



Scales small, narrowly imbricated, disposed in longitudinal series 

 parallel with 1. 1., and in transverse series sloping obliquely forward. 



