CLAEIAS. '2'2b 



Length of head 4:~A^ times in total ; maxillary 

 barbel 2-2^ length of head ; 17-22 gill- 



rakers on anterior arch; D. 78-87, A. 55-67. 21. C. hi/thipo(/on, ^any., p. 252. 

 Length of head 4-4^ times in total ; maxillarj'- 

 barbel l^-lf length of head; 14-15 gill- 

 rakers on anterior arch ; D. 65-78, A. 55- 

 62; occipital process much longer than 



broad 22. C. alluaudi, Blgr., p. 253. 



Length of head 4|-5 times in total; maxillary 

 barbel li-2 length of head ; 16-18 gill- 

 rakers on anterior arch; D. 82-91, A. 68-72. 23. C. loenien, Blgr., p. 254. 

 b. Vomerine teeth granular, in a fan- 

 shaped patch ; length of head 4 

 times in total ; maxillary barbel 

 14 length of head; 16 gill- 

 rakers on anterior arcli ; D. 80, 



A. 63 24. C. niacromijstax, Gthr., p. 256. 



2. Nasal barbel shorter than head. 



a. Length of head 31—4^ times in total ; distance between occipital 



process and dorsal f-§ length of head ; D. 60-72, A. 44-55. 

 Pectoral spine strongly serrated on both sides ; 



12-15 gill-rakers on anterior arch . . , 25. C. dinnerilii, Stdr., p. 257. 

 Pectoral spine feebly serrated ; 20 gill-rakers 



on anterior arch 26. C. Uheriensis, Stdr., p. 258. 



b. Length of head 42-5^ times in total; A. 68-80; 15-20 gill-rakers 



on anterior arch. 

 Head I5— 12 ^s long as broad ; nasal barbel 



|-| length of head ; D. 92-95 . . . . 27. C. pachpiema, Blgr., p. 259. 

 Head Ij-l^ as long as broa<l ; nasal barbel 



-i-f length of head ; D. 79-87 . . . . 28. C. hcviceps, Gill, p. 260. 



C. Dorsal and anal embracing or adnate to base of caudal ; maxillary barbel 



|-1.^ length of head. 

 1. Head 1|-1^ times as long as broad. 

 Length of head 4 times in total ; ventrals a 

 little nearer end of snout than caudal ; 



D. 55, Ai 50 ; pectoral spine not serrated 



on outer side 29. C. bueUiko/en, fitdv., i). 2G1. 



Length of head 5 times in total ; distance 

 between ventrals and caudal 1^ that be- 

 tween ventrals and end of snout ; D. 80, 

 A. 65 ; 15 gill-rakers on anterior arch; 

 pectoral spine serrated on both sides . . 30. C. amplexicaxida, Blgr., p. 261. 



