494 CICHLIDJE. 



lower part of anterior arch. Dorsal fin with 15 spines and 10 soft rays ; spines 

 increasing in length to the last, which measures half the length of the head; longest 

 soft rays three-fourths the length of the head. Anal fin with 3 spines and 9 soft rays ; 

 third spine longest, not quite half the length of the head. Pectoral fin acutely 

 pointed, as long as the head, extending to above the origin of the anal. Ventral fin 

 reaching beyond the origin of the anal. Caudal fin rounded. Caudal peduncle once 

 and a half as long as deep. Scales very feebly denticulate, 33 ^; lateral lines ^. 



Pale olive above, silvery white beneath ; a blackish opercular spot ; a dark grey band 

 from the latter to the root of the caudal fin; a rather indistinct dark vertical bar below 

 the eye ; dorsal and caudal fins greyish ; ventral fins yellow, the outer rays blackish ; 

 anal fin yellow, with three orange ocellar spots, encircled with red, on the posterior 

 part. 



Measurements (in millimetres). 



Total length 140 



„ „ (without caudal) 115 



Greatest depth of body 43 



Length of head 38 



Width o£ head 20 



Length of snout . » . , 12 



Diameter of eye 10 



Interorbital width 12 



Length of last dorsal spine 18 



„ longest soft dorsal ray 28 



„ third anal spine ]6 



„ longest soft anal ray 27 



„ pectoral 38 



This remarkable fish forms part of the valuable collection made in Lake Victoria by 

 Mr. E. Degen. A single specimen was obtained at Bunjako on November 5th, 1905. 



