16 CYPEINID^. 



/3. 22-27 scales in lateral line ; dorsal usually with 8 branched rays. 



* Posterior barbel 1\ to If diameters o£ eye ; caudal peduncle 



lj-li times as long as deep. 

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

 in total" length ; eye 3-3£ times in length 

 of head 130. B. hessleri, Stdr., p. 138. 



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

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

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



Sc. 23 |f, 2 ; depth of body 3^ times in total 



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



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

 but slightly longer than deep. 

 Sc. 23-26 jUi, 2i-3 ; depth of body 2*-2| 

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

 length of head 133. B. guirali, Thomin., 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 ^f, 4 ; dorsal with 8 branched rays, its 



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



Sc. 33-36 9=|?, 3-4 ; dorsal with 7 branched 



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 \. 



1. Two barbels on each side. 



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

 peduncle 12 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 J, 4, 16 ; posterior barbel § diameter [p. 145. 



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

 Sc. 34-38 5 -|~f^, 4, 12 ; posterior barbel 1-1£ 



diameters of eye ; pectoral not reaching 



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



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

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



