new Fishes from Lakes Tanganyika ami Kivu. 5 



Tihijiia I'Jops. 



1). Xll-Xlll 14. A. Ill 8-9. Sq. ao-10 ^,4t5. 

 L. lat. a4-35/15-19. 



Dcjitli of body equal to length of head, 3| to 3.^ times iti 

 total length. Diameter of eye 2^ in length of head ; mouth 

 not extending quite to belosv anterior border of eye ; 3 series 

 of teeth ; 2 or 3 series of scales on the cheek. 13 gill-rakers 

 on lower part of anterior arch. Pectoral as long as head. 

 Caudal deeply notched. 



Total length 90 niillim. 



Two specimens from M.<:ainbu, Tanganyika. 



AsPROTiF^Ai'iA, gen. nov. 



Teeth small, tricus])id, closely set, in two series. Mouth 

 inferior, transverse. Body elongate, much attenuate in the 

 caudal region. Scales cteuoid j two lateral lines. Anal 

 with 3 spines. 



Allied to Tilopia. 



Asprotilapia leptura. 

 D. XIV 12. A. Ill 8. Sq. 38 ^v J- 1^'- 27 20. 



Body rather feebly compressed, its depth 5 times in total 

 length. 8nout subconical, projecting strongly beyond the 

 mouth ; diameter of eye 2| times in length of head ; 3 series 

 of scales on the check. Caudal deeply notched. Caudal 

 jieduncle 3 times as long as deep. 



Total length 95 millim. 



A single specimen from Msambu, Tanganyika* 



Mastacemhelus frenatus. 

 D. XVII 8.5. A. II 90. 



Vent equally distant from the end of the snout and from 

 the caudal ; length of \wm\ 3^ times in its distance from vent. 

 Mouth extending to below anterior border of eye ; no \)\-x- 

 opercular spines. Body with dark brown marblings ; a dark 

 streak on each side of the head, passing through the eye ; 

 two brown bars across the caudal. 



Total length 2r)0 millim. 



A single specimen from the north end of Lake Tanganyika. 



