] 6 CYPK1N1D.E. 



$. 22-27 scales in lateral line ; dorsal usually with 8 branched rays. 

 * Posterior barbel li to 1| diameters of eye ; caudal peduncle 

 1^-1-g times as long as deep. 

 Sc. 25-27 t|, 2^-3 ; depth of body 3-3i times 

 in total length ; eye 3-3^ times in length 

 of head 130. B. kessleri, Stdr., p. 133. 



Sc. 22-26 ||, 2-3 ; depth of body 2|-3i times 

 in total length ; eye 3 (young) -4 times 

 in length of head 131. B. holotwnia, Blgr., p. 139. 



Sc 23 si, 2 ; depth of body 3^ times in total 



length ; eye 3 times in length of head . . 132. B. miolepis, Blgr., p. 141. 



** Posterior barbel li- 2 diameters of eye ; caudal peduncle not or 

 but slightly longer than deep. 

 Sc. 23-26 j^j, 21-3 ; depth of body 21-2-f 

 times in total length ; eye 3-3^ times in 

 length of head 133. B. guirali, Thomiru p. 142. 



C. Last simple ray of dorsal enlarged, bony, more or less distinctly serrated 



behind f ; a single barbel on each side. 



1. Lateral line present. 



Sc. 40 g?, 4 ; dorsal with 8 branched rays, its 



spine strongly serrated ....... 134. B. Ikamba, Keilh., p. 143. 



5--6- 

 Sc. 33-36 ef__ ft i , 3-4 ; dorsal with 7 branched 

 O2-D2 



rays, its spine feebly serrated in its upper 



part only 135. B. trevelyani, Gthr., p. 143. 



2. No lateral line. [p. 144. 

 Sc. 25 ; dorsal with 7 branched rays . . . 136. B. apleurogrammu, Blgr., 



D. Last simple ray of dorsal not enlarged, or but feebly enlarged, not 



serrated f . 



1. Two barbels on each side. 



a. Dorsal with 7 branched rays ; 27-38 scales in lateral line ; caudal 

 peduncle 1| to 2 times as long as deep. 

 a. 3-4^ scales between lateral line and ventral ; lateral line complete. 

 * Base of ventral below anterior rays of dorsal. 

 Sc. 35-36 p, 4, 16 ; posterior barbel § diameter LP- l^ 0, 



of eye ; pectoral not reaching ventral . . 137. B. amphigramma, Blgr., 



Sc. 34-38 -^r 5 ? 4, 12 ; posterior barbel 1-1^ 

 diameters of eye ; pectoral not reaching 

 ventral 138. B. burehelli, A. Smith, p. 146. 



t The serration sometimes very indistinct in B. trevdyani, no. 135. 

 + See also B. holoteenia, above, no. 131. 



