PARATILAPIA. 373 



52. PARATILAPIA NIGPJPINNIS. 

 Bouleng. Ann. & Mag.N. H. (7) vii. 1901, p. 3, Poiss. Bass. Congo, p. 428 (1901), 

 and Tr. Zool. Soc. xvi. 1901, p. 152, pi. xix. fig. 1 ; Pellegr. Mem. Soc. Zool. 

 France, xvi. 1904, p. 272. 



Depth of body 4 times in total length, length of head 3 to 3£ times. 

 Head 2} times as long as broad, with slightly concave upper profile ; 

 snout obtusely pointed, as long as broad, shorter than postocular part 

 of head, as long as eye, which is 3£ times in length of head, equals 

 interorbital width, and much exceeds praorbital depth; mouth very 

 protractile, praemaxillary processes very long and extending to between 

 orbits ; maxillary extending to below anterior border of eye ; teeth very 

 small, in 3 series, about 60 in outer series of upper jaw; 2 or 3 series 

 of scales on the cheek, width of scaly part hardly 1 diameter of eye. 



Fig. 254. 



Paratilapia nigripinnis. 

 Type (Tr. Z. S. 1901). 



Gill-rakers long and closely set, 20 on lower part of anterior arch. 

 Dorsal XV-XVII 11 ; spines increasing in length to the last, which 

 measures f length of head ; longest soft rays \ to \ length of head. 

 Anal III 8-9 ; third spine as long as last dorsal. Pectoral as long as 

 head, reaching origin of anal. Ventral reaching origin of anal or 

 beyond. Caudal deeply notched, the lobes produced into filaments. 

 Caudal peduncle twice as long as deep. Scales rather strongly denti- 

 culate, 39-40 ^ ; lateral lines y^. Dark brown, lighter beneath; fins 

 blackish, the caudal edged with white above and beneath. 



Total length 80 millim. 



Lake Tanganyika. 

 1-2. Types. Msambu. Prof. J. E. S. Moore (C). 



