1913. 



NATURAL SCIENCES OF PHILADELPHIA. 



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in eye, also its lower hind end reaches slightly beyond hind edge of 

 eye. Teeth along jaw edges fine, conic, in narrow band or irregularly 

 biserial, uniform, sharply pointed. Teeth of upper jaw extend along 

 maxillary edge its entire length, though mostly uniserial. Upper 

 jaw with single large conic canine in front medianly and 3 subequally 

 smaller ones on each side anteriorly, all placed just inside band of 

 small teeth. Mandible with 3 pairs of canines, symphyseal pair 

 wide-set and largest. No palatine teeth. Inner buccal folds broad. 

 Tongue fleshy, slenderly pointed, and free. Mandiljle rather broad, 

 shallow, and rami low inside mouth, snout slightly protruding when 

 jaws close. Interorbital broadly convex. Preorbital slender. Infra- 



r?jrr^0^' 



Fig. 21. — CJinrnx mnJina Fowler. (Type.) 



orbital broad, its surface slightly papillose and covers about half 

 of cheek, which latter with naked skin also slightly asperous. Pre- 

 opercle without spine, its hind edge entire and sloping slightly back, 

 and lower edge with 7 minute denticles. Opercle deep, nearly smooth, 

 and its upper hind edge a little emarginate. Well developed frontal 

 and parietal fontanel, extends from internasal region back to occipital 

 process, latter narrowly triangular and short. 



Gill-opening extends forward about opposite middle of eye. 

 Rakers 3+4, strong, lanceolate, about equal filaments, and latter 

 a little less than half of eye. Isthmus narrowly constricted, convex 

 over surface. Branchiostegals moderate, subequal. 



Scales all small, each one roughened with about six minute conic 

 thorns or denticles. Along predorsal edge of body scales appear a 



