CLAKIAS. 223 



35 (in very young)-135 gill-rakers on anterior 

 arch ; band of vomerine teeth 1^ to 2f 

 times width of prsemaxillary band ; head 

 not more than If times as long as broad, 



4-7 times its distance from dorsal . . . 7. C. lazera, C. & V., p. 235. 

 7. Vomerine teeth granular, form- 

 ing a large semi-elliptic patch, 

 squarely truncate behind, its 

 longitudinal diameter 3 times 

 that of prsemaxillary band ; 

 35 gill-rakers on anterior arch ; 

 distance between dorsal and 



caudal \ length of head . . 8. C. mellandl, Blgr., p. 238. 

 h. Head smooth above ; D. 78-85, 

 A. 60-70 ; vomerine teeth gra- 

 nular, forming a band which is 

 not broader than prsemaxillary 

 band ; 45-70 gill-rakers on an- 

 terior arch ; distance between 

 dorsal and caudal not greater 

 than diameter of eye .... 9. C tsanensis, Blgr., p. 239. 



2. Length of head 4 times in total 

 length ; vomerine teeth mostly 

 granular, forming a band which 

 is a little narrower than the prse- 

 maxillary band and interrupted in 

 the middle ; head granulate above ; 

 D. 63-72, A. 50-52 ; distance be- 

 tween occipital process and dorsal 

 f-^ length of head ; 55 gill-rakers 

 on anterior arch . . . . . . 10. C. capensis, C. & V., p. 240. 



B. Maxillary barbel 1 ; 1 length of head ; 

 12 gill-rakers on anterior arch ; head 

 feebly granulate above, 1£ as long 

 as broad ; vomerine teeth conical ; 



D. 65-70, A. 56-62 11. C. pUtyceplalw, Blgr., p. 241. 



II. Ventral fins 1\ to 2 times as distant from root of caudal as from end 

 of snout, or nasal barbel at least as long aa head ; head smooth or very 

 feebly granulate above ; less than 30 gill-rakers on anterior arch. 

 A. Dorsal separated from caudal by a space at least equal to diameter of eye ; 

 nasal barbel shorter than head. 

 1. Head 1^ to 1| times as long as broad, 

 its length 3^-3f times in total 

 length; distance between occipital 



