528 PROCEEDINGS OF THE ACADEMY OF [Oct., 



tinuous in front of upper jaw. Similar teeth in mandible, not 

 continuous over front of jaw, which has sUght knob. Row of minute 

 teeth on vomer and palatines, and of larger size on pterygoids. 

 Tongue small rounded smooth knob in front of mouth. Upper 

 surface of basibranchial shaft finely asperous. Mandible convex 

 over surface, rami not elevated inside mouth. Mandible included 

 within upper jaw, so that its tip extends slightly before front 

 nostril. Nostrils small, together, nearer eye than snout tip. Inter- 

 orbital broadly convex. Each supraorbital ridge distinct, slopes 

 up straight to nape, flaring out Httle in front. Cheek would form 

 an isosceles triangle. Skin on top of head, cheeks and opercles with 

 numerous minute tubercles and little depressions or pits. 



Gill-opening forward about opposite first third in eye. Rakers 

 18 -f- 20, slender, compressed, pointed, inner edges w^ell denticulated, 

 about IJ in eye. Filaments 2 in eye. Pseudobranchi?e 3 in eye. 

 Isthmus rather long, slender, lower edge slightly convex. Bran- 

 chiostegals 11, membranes slightly united as free fold across isthmus 

 in front. 



Scales very loose, narrowly imbricated, arranged in even length- 

 wise rows, more or less uniform in size. Each scale with rather 

 numerous reticulating strise. Caudal base scaly. Dorsal and anal 

 with well-developed basal scaly sheaths. Pectoral with long pointed 

 axillary scale slightly less than half length of fin. Ventral with 

 free pointed axillary scale, about f length of fin. Both pectorals 

 and ventrals with lower broad scaly flaps. 



Dorsal origin midway between hind eye edge and caudal base, 

 first branched rays longest, extends back further when depressed 

 than tips of last rays. Anal origin slightly behind dorsal origin, 

 first branched ray longest, fin moderately low behind. Caudal 

 deeply forked, lobes pointed and about equal. Pectoral low, pointed, 

 reaches very close to ventral origin. Latter inserted little nearer 

 anal origin than pectoral, and fin reaches slightly over half way to 

 latter. Vent at depressed ventral tips, well before anal. 



Color in alcohol translucent whitish, back above and upper surface 

 of head dusted with minute dusky or dull olive dots. Sides and 

 lower surface of head bright silvery-white, also iris. Narrow median 

 lateral band of silvery-white, slightly tinted pale brassy in places, 

 rather ill-defined, though at no point quite equal to width of pupil. 

 Fins pale, dorsal and caudal slightly grayish. Row of dull underlaid 

 dark spots along anal base on trunk. Hind edge of caudal pale 

 dusk}^ 



