140 



,Head 3 3 / 4 ; depth 2 4 / 5 ; D. 2.16; A. 3, 5.1; P. 1.15; V. 1.8; 

 scales 33 in lateral line to base of caudal, and 2 more on 

 latter; 6 scales between origin of dorsal and lateral line obli- 

 quely back, uppermost scale very small; 5 scales between 

 lateral line and origin of ventral, lowest scale very small; 10 

 scales before dorsal; width of head i ! / 2 in its length; depth 

 of head i'/ 3 ; snout 2 2 / 5 ; eye 4^; width of mouth 4 1 / 2 ; inter- 

 orbital space 2; second simple dorsal ray I'/ioJ second simple 

 anal ray i'/ 3 ; pectoral i 1 ^; ventral I'/oJ least depth of caudal 

 peduncle i 3 / 4 ; lower caudal lobe 3^,0 in head and trunk; 

 base of dorsal 2 7 / 8 . 



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 peduncle robust, compressed, and its least 

 depth about equal to its length. 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 adjoining anterior in a short cutaneous tube, 

 lateral, much nearer eye than tip of snout and level with 

 upper margin of eye. Preorbital not distinct, and together with 

 cheek covered with skin. Interorbital space elevated a little 

 convexly and flattened medianly. Gill-opening lateral, extending 

 forward about opposite posterior margin of preopercle. Rakers 

 in form of a low fringe of fine or minute filaments. Filaments 

 long, about equal to orbit. No pseudobranchiae. Width of 

 isthmus where gillmembranes join about equal to orbit. 



Scales large, cycloid, and well exposed, also of more or 

 less even size. Scales on breast small, especially anteriorly. 

 Small scales along bases of dorsal and anal. A pointed scaly 

 ventral flap in axil of fin about 2 / 5 its length. Head and fins 

 naked, except base of caudal. Lateral line of short exposed 

 single tubes, and continuous even on base of caudal. 



