PAEATILAP1A. 369 



length of head, equals interorbital width, and nearly 3 times praeorbital 

 depth ; mouth extending to below anterior border of eye ; teeth very 

 small, in 3 series, 50 to 60 in outer series of upper jaw ; 2 or 3 series 

 of scales on the cheek, width of scaly part not half diameter of eye. 

 Gill-rakers short, 14 to 16 on lower part of anterior arch. Dorsal 

 XIII-XIV 12-14 ; spines thin, slender, increasing in length to the 

 ninth or tenth, which measures a little less than \ length of head. 

 Anal III 9 ; third spine f length of head. Pectoral as long as or a 

 little longer than head, extending to vertical ot origin of anal or a little 

 beyond. Ventral much produced, reaching caudal or nearly as far. 

 Caudal with deep crescentic notch, the outer rays more or less 

 produced. Caudal peduncle 1^ to lg times as long as deep. Scales 

 denticulate, 60-64 jgijg; lateral lines '.j^- 6 , the upper extending to the 

 caudal peduncle, or nearly to the base of the caudal. Bluish or olive 

 above, silvery white below ; gill-cover yellow ; yellow streaks may be 

 present on the body; dorsal and anal with yellow streaks; caudal 

 yellow, with dark upper and lower margins. 



Total length 135 millim. 



Lake Tanganyika. 



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



3. Ad. Niamkolo. Dr. W. A. Cunniiigton (G.). 



4. Ad. Sumbn. „ 



5. Skel. „ „ 



49. PARATILAPIA STENOSOMA. 

 Bouleng. Ann. & Mag. N. H. (7) vii. 1901, p. 2, Tr. Zool. Soc. xvi. 1901, 

 p. 151, pi. xvii. fig. 1, and Poiss. Bass. Congo, p. 426 (1901) ; Pellegr. 

 Mem. Soc. Zool. France, xvi. 1904, p. 272 ; Bouleng. Tr. Zool. Soc. xvii. 

 1906, p. 564. 



Depth of body nearly equal to length of head, 2f to 3 times in 

 total length. Head 2^ to 2§ times as long as broad ; lower jaw pro- 

 jecting ; snout with straight or slightly convex upper profile, as long as 

 broad or slightly longer than broad, shorter than postocular part of 

 head, nearly as long as eye, which is 3^ to 3^ times in length of head, 

 equals interorbital width, and exceeds praeorbital depth ; mouth not 

 extending to below anterior border of eye ; teeth small, in 2 or 3 series, 

 90 to 100 in outer series of upper jaw ; 2 series of scales on the cheek, 

 width of scaly part f to § diameter of eye. Gill-rakers rather long and 

 closely set, 19 to 28 on lower part of anterior arch. Dorsal XV 13 ; 



vol. in. 2 B 



