BAEBUS. 1 



6- 

 Sc. 32-33 ( -rf, 4-4| ; posterior barbel a little 



longer than eye ; pectoral reaching ventral. 139. B. motebensis, Stdr., p. 147. 



Sc 30-32 J, 3, 12 110. B. h,m,i, Blgr., p. 147. 



# * 



Base of! ventral anterior to dorsal. 



4i_5i 

 Sc. 30-36 gtg?, 3^-4i 141. B. vulneratus, Oasteln., p. 148. 



Sc. 30 nf, 3 142. B. usambarce, Lonnb., p. 149. 



/3. 2-J-3 scales between lateral line and ventral ; lateral line incom- 

 plete, on 8-15 scales only. [p. 150. 

 41 , 

 Sc. 27-29 jf, 2^—3 143. B. liemiplenrogramma, Blgr., 



7. I5-25 scales between lateral line and ventral ; lateral line complete. 



Sc. 31-35 grfp, ^i~-2 > posterior barbel 1-1^ 



diameters of eye 144. B. guivwyi, Gthr., p. 150. 



3i' 



3- 

 Sc. 28 ,|, 2 ; posterior barbel A- of eye . . . 145. B. banguelensis, Blgr., p. 151. 



}). Dorsal with 8 (rarely 7 or 9) branched rays ; 21-33 scales in lateral 

 line, 2-3 between lateral line and ventral, 

 a. Base of ventral below middle of dorsal. 



Sc. 29-31 ^r-*, 2i-3, 12 ; posterior barbel 

 i— § diameter of eye ; snout projecting 



very slightly beyond mouth . ... 146. B. biennis, Peters, p. 152. 



Sc. 27-30 4!, 3, 12 ; posterior barbel about \ 



diameter of eye ; snout projecting strongly [p. 153. 



beyond mouth 147. B. quadripunctatus, Pfeff., 



Sc. 25-29 -t-*, 2i, 12; posterior barbel as 

 long as eye ; snout projecting very slightly 



beyond mouth 148. B. nigeiieusis, Blgr., p. 154. 



Sc. 25-26 f|, 2, 10 ; posterior barbel as long- 

 as eye ; snout projecting strongly beyond 



mouth 149. B. humeralis, Blgr., p. 154. 



/3. Base of ventral below anterior rays of dorsal ; posterior barbel at 

 least § diameter of eye. 

 * Pectoral reaching or nearly reaching ventral ; posterior barbel 

 g-1 diameter of eye. 

 Sc. 26-27 |f, 2 ; depth of body equal to length 

 of head, 3f times in total length ; pos- 

 terior barbel a little shorter than eye . . 150. B. radiatus, Peters, p. 155. 

 Sc. 22-25 |j, 2-21, 12 ; depth of body greater 

 than length of head, 2|-3 times in total 

 length ; posterior barbel as long as or a 



little shorter than eye 151. B. ablahes, Blkr., p. 156. 



VOL. II. c 



