PELMATOCHROMIS. 491 



round darker spots forming regular series between the rays ; posterior part of anal fin 

 with a few small orange ocellar spots. 



A single specimen was obtained in Lake Victoria, at Bunjako, by Mr. E. Degen, 

 5.11.05. 



A small specimen, 90 millimetres long, from Entebbe, which I regard as probably a 

 young of the same species, has stronger outer teeth, the maxillary extends to below the 

 anterior third of the eye, and the caudal fin is regularly rounded. Snout as long as 

 the eye, which is three and one-third times in the length of the head. D. XV 9 ; 

 A. Ill 8 ; Sc. 32 £ ; lat. 1. g. 



5. PELMATOCHROMIS OBESUS. 

 (Plate LXXXIX. fig. 5.) 



Boulenger, Ann. & Mag. N. H. (7) xvii. 1906, p. 442. 



Depth of body twice to twice and a half in the total length, length of head three 

 times. Head broad, with slightly concave upper profile ; snout twice as broad as long 

 in the adult, as long as the diameter of the eye, which is three and a half times in the 

 length of the head and once and one-fourth to once and a half in the interorbital 

 width, and a little less than the scaly part of the cheek below the eye ; prseorbital 

 much narrower than the eye; lower jaw not projecting; mouth oblique; maxillary 

 extending to below the anterior border of the eye ; teeth in two or three series in both 

 jaws, outer small, inner minute ; three or four series of scales on the cheek. Gill- 

 rakers short, some T-shaped, 8 to 10 on lower part of anterior arch. Dorsal fin with 

 15 spines and 9 soft rays; spines increasing in length to the last, which measures 

 two-fifths to half the length of the head; longest soft rays three-fifths the length of 

 the head. Anal fin with 3 spines and 8 or 9 soft rays ; third spine stronger but a 

 little shorter than the last dorsal. Pectoral fin as long as the head, extending to above 

 the base of the third anal spine. Ventral fin extending to the soft anal rays. Caudal 

 fin obliquely truncate, upper rays longest. Caudal peduncle once and one-fourth as 



4—5 • 20—21 



long as deep. Scales denticulate, 32 -jg ; lateral lines jj-^. 



Olive above, with very indistinct dark cross-bands, yellowish white beneath ; a rather 

 indistinct dark vertical bar below the eye ; a dark opercular spot ; dorsal fin greyish, 

 blackish towards the border, the soft portion with round dark spots ; anal fin yellow, 

 with two or three large round orange spots on its posterior half; inner rays of ventral 

 fin yellow, outer blackish ; caudal fin greyish. 



3r2 



