BAEBUS. 259 



notched ; origin of the tin midway between the end of the snout and the root of the 

 caudal. Anal tin with III 5 rays, longest three-fifths to two-thirds the length of the 

 head, not reaching the caudal. Pectoral tin acutely pointed, a little shorter than the 

 head, reaching or nearly reaching the ventral ; latter originating below first ray of 

 dorsal. Caudal fin deeply forked. Caudal peduncle once and a half to once and 

 two-thirds as long as deep. Scales smooth, 22-25 ^t^r, 1J between lateral line series 

 and ventral tin, 9 or 11 round caudal peduncle. Lateral line reduced to 3 to 6 

 tubules on the anterior scales. 



The fish in spirit is yellowish with silvery gloss, the fins white and transparent ; 

 a small round black spot at the base of the caudal and another at the base of the 

 anal ; one or two further spots often present on the middle line of the side. 



The largest specimen measures (in millimetres) : — 



Total length 24 



„ „ (without caudal) 21 



Greatest depth 6 



Length of head 6 



Width of head 3 



Length o£ snout 1£ 



Diameter of eye 2 



Interorbital width 2\ 



Longest ray of dorsal 6 



„ „ anal 4 



Mr. Loat obtained 22 specimens of this little fish in Lake No, White Nile, on 

 February 22nd, 1901. 



Apart from the different markings, B. stigmatopygus differs from the closely allied 

 B.pumilus in the shorter snout and the greater number of scales in a longitudinal 

 series, viz. 22 to 25 instead of 19 or 20 ; from B. anema in the longer caudal peduncle, 

 the incomplete lateral line, and the presence of one scale less in the transverse series. 



35. BABBUS PUMILUS. 



(Plate XLVIII. fig. 2.) 



Boulenger, Ann. & Mag. N. H. (7) viii. 1901, p. 444. 



Depth of body equal or nearly equal to the length of the head, about three times in 

 the total length. Snout rounded, not prominent, a little shorter than the eye, the 

 diameter of which is three times in the length of the head and a little less than the 

 interorbital width ; mouth small, terminal ; lips feebly developed, not extending across 

 the chin ; no barbels. Dorsal fin with III 8 rays, last simple ray not ossified and a 



2l2 



