14 MR. G. A. BOULENGER ON A COLLECTION 



Scales finely denticulate on the edge, 34-36 ^; lat. 1. f^ ; upper lateral line 

 complete or nearly so, usually reaching base of caudal. Grey-brown above, with or 

 without irregular darker spots, silvery below ; fins grey-brown, the ends of the ventral 

 filaments white. 



Total length 92 millim. 



8 specimens from Kinyamkolo, and one from Mbity Rocks. 



This species is remarkable among its congeners from continental Africa for the low 

 number of its dorsal spines combined with the large eye, the crescentic caudal, the 

 extremely produced ventrals, and the upper lateral line extending on the caudal 

 peduncle. 



14. Paeatilapia fuecifer, sp. n. (Plate IV. fig. 1.) 



Teeth very small, in 3 series in both jaws, the outer largest and tipped with brown. 

 Depth of body equal to length of head, 3 times in total length. Snout with curved 

 upper profile, a little shorter than the eye, the diameter of which is 2f to 2f times in 

 length of head and slightly exceeds interorbital width'; maxillary extending to beloAV 

 anterior border of eye ; 2 or 3 series of scales on the cheek ; large scales on the 

 opercle. Gill-rakers rather long, lanceolate, 15 or 16 on lower part of anterior arch. 

 Dorsal XIII 13-14 ; spines increasing in length to the ninth, which measures a little 

 less than ^ length of head ; some of the soft rays produced, nearly as long as head. 

 Pectoral a little longer than head. Ventral much produced, extending nearly to 

 caudal. Anal III 9 ; third spine longest, . f length of head ; middle soft rays 

 produced, like the dorsals. Caudal deeply emarginate, crescentic, the rays at the 

 angles produced. Caudal peduncle IJ as long as deep. Scales finely denticulate on 

 the edge, 60-63 jq^', lat. 1. -KgZM > upper lateral line nearly complete, extending on the 

 caudal peduncle. Bluish above, white beneath ; a few ill-defined yellow streaks along 

 the body ; some yellow marblings on the postocular part of the head ; fins white, 

 with some yellow streaks on the dorsal and anal and between the ventral and caudal 

 rays (according to a sketch by Mr. Moore). 



Total length 110 millim. 



Two specimens from Kinyamkolo. 



Closely allied to the preceding ; distinguished by much smaller scales. 



15. Paeatilapia leptosoma, sp. n. (Plate III. fig. 4.) 



Teeth small, in 3 series in the upper jaw, in 4 in the lower, outer largest. Depth 

 of body 4 to 4^ times in total length ; length of head 3. Snout with straight upper 

 profile, as long as or a little longer than the eye, the diameter of which is 3^ to 3f 

 times in length of head, and equals interorbital width ; maxillary extending to below 

 anterior border of eye or not quite so far ; 2 series of scales on the cheek ; opercle 



