CLAKIAS. 223 



3") (in very yonno)-!;^);") ^ill-nikors on anterior 

 arch ; band of vomerine teeth 1^ to 2^ 

 times width of prpemaxillary band ; head 

 not more than If times as long as broad, 



4-7 times its distance from dorsal ... 7. C. htzevd, C, ct V., p. 2.')5. 

 7. Vomerine teeth granuhir, form- 

 ing a large semi-elliptic patch, 

 squarely truncate behind, its 

 longitudinal diameter 3 times 

 that of prremaxillary band ; 

 35 gill-rakers on an terior a rch ; 

 distance between dorsal and 



caudal \ length of head . . 8. C. )nrllaiuii, BIgr., p. 238. 

 />. Head smooth above ; D. 78-8'), 

 A. GO-70 ; vomerine teeth gra- 

 nular, forming a band which is 

 not broader than pr?emaxillary 

 band ; 45-70 gill-rakers on an- 

 terior arch ; distance between 

 dorsal and caudal not greater 



than diameter of eye .... 9. ('. tK(rneiisl,<<, 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 pra3- 

 maxillary band and interrupted in 

 the middle ; head granulate above ; 

 D. G3-72, A. 50-52 ; distance be- 

 tween occipital process and dorsal 

 |-g^ length of head ; 55 gill-rakers 



on anterior arch 10. C. capensls, 0. k, V,, p. 240. 



B. Maxillary barbel 11 length of head ; 

 12 gill-rakers on anterior arch ; head 

 feebly granulate above, 1^ as long 

 as broad ; vomerine teeth conical ; 



D. G5-70, A. 56-02 11. C. platycephaluif, ^\gr., \^. 2^1. 



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 as head ; head smooili 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^-3| times in total 

 length; distance between occipital 



