SYN0D0NT1S. 



437 



Depth of body 3f to 4 times in total length, length of head 3^ to 3| 

 times. Head a little longer than broad, granulate above ; snout 

 obtusely pointed, nearly i length of head ; eye supero-lateral, i\ (young) 

 to 6 times in length of head, 2 to 1\ times in interorbital width ; lips 

 rather strongly developed ; movable mandibular teeth not \ diameter 

 of eye, 50 to 55 in number. Maxillary barbel not margined, as long- 

 as or a little shorter than head, extending slightly beyond base or to 

 anterior third of pectoral spine; outer mandibular barbel not quite 

 twice as long as inner, usually with simple branches, inner with 



Fig. 328. 



V 



Sijnodontis Jtaugi. 

 L. Aziwgo. i. 



ramified branches. Gill-opening not extending downwards beyond root 

 of pectoral spine. Occipito-nuchal shield with granular rugosities, 

 not or but little longer than broad, obtusely tectiform, with rounded 

 posterior processes. Humeral process obtusely keeled, much longer 

 than deep, acutely pointed, extending a little beyond occipito-nuchal 

 process. Skin villose on sides. "Dorsal I 6-7 ; spine as long as 

 or a little shorter than head (f in young), striated, smooth or feebly 

 granulate in front, feebly serrated behind. Adipose dorsal 3 to 3£ times 



