1905.] 



NATURAL SCIENCES OF PHILADELPHIA. 



481 



tween origin of dorsal and lateral line obliquely back, uppermost scale 

 verv^ small; 5 scales between lateral line and origin of ventral, lowest 

 scale very small ; 10 scales before dorsal; width of head H in its length; 

 dep^ of head 1^; snout 2j; eye 4-i; width of mouth 4^; interorbital 

 space 2; second simple dorsal ray l^s; second simple anal ray IJ; 

 pectoral 1^; ventral 1^; least depth of caudal peduncle If; lower 

 caudal lobe 3^ in head and trunk; base of dorsal 2|-. 



Body elongate, compressed though robust, greatest depth at origin 

 of dorsal, and profiles more or less similarly convex. Back but little 

 elevated and its profile convex from occiput to dorsal. Caudal pedun- 

 cle rol:)USt, compressed, and its least depth about equal to its length. 



Fig. 



-Osteochilus harrisoni Fowler. 



Head rather small, compressed, broad, robust, and both upper and 

 lower profiles inclined similarly, also nearly straight. Snout long, 

 broad, convex, obtuse above, and somewhat declivous in front. Eye 

 rather small, a little posterior to middle of length of head, circular, and 

 not much above middle of depth of head. Pupil large and circular. 

 Mouth inferiorly terminal, broad, the gape not extending far laterally. 

 Lips rather thick, fleshy and plicate. Jaws horny and with a rather 

 sharp edge. Premaxillaries protractile. Four upper mental barbels, 

 upper lateral near edge of snout, and lower at corner of mouth, also 

 much longer or about reaching opposite middle of orbit. Nostrils ad- 

 joining anterior in a short cutaneous tube, lateral, much nearer eye 



