Fishes from Luke Bangiodo. 647 



21. Tilapia melanopleura , A. Dum. {lata, Gthr., 

 ReadalU, Blor.). 



Native name : Lupondo. 



22. Tilapia Spari-mani, A. Smith. 

 Native name : Chikundu. 



'J 



Deptli of body 2\ times in total length, length of head 3^ 

 times. Eye § length of snout, 4 times in length of head, f 

 interorbital width ; mouth small, maxillary not extending to 

 below anterior border of eye; teeth small, in 4 rows; two 

 series of scales on the cheek. Gill-rakers short, 10 on lower 

 part of anterior arch. Dorsal XV 11, spines increasing in 

 length to the last, which measures f length of head ; longest 

 soft ray f length of head. Anal III 10. Pectoral acutely 

 pointed, as long as head. Ventral reaching origin of anal. 

 Caudal rounded, subtruncate. Caudal peduncle a little 

 deeper than long. Scales cycloid, 29 ^ ; lateral lines p^. 

 Brownish ; a black opercular spot ; soft dorsal with rather 

 indistinct round blackish spots. 



Total length 140 mm. 



A single specimen. Native name: Mituku. 



Distinguished from T. Sparrmani by the smaller moutli 

 and the longer pectoral fin. 



24. Mastacembelus signaius, sp. n. 



Depth of body 10| times in total length, length of head 7 

 times. Vent equally distant from end of snout and base of 

 caudal. Length of head 2| times in its distance from went, 

 4 times its distance from first dorsal spine ; snout 3 times as 

 long as eye, ending in a trifid appendage which is twice as 

 long as eye ; mouth extending to below nostril ; a strong 

 prseorbital spine; three strong praeopercular spines. Vertical 

 fins united with the rounded caudal. Dorsal XXIX S5. 

 Anal III 85. Pectoral about i length of head. About 20 

 scales between origin of soft dorsal and lateral lino. Brownish 

 above, yellow beneath ; a series of 14 large X-shapad 

 blackish markings on each side of the body. 



Total length 275 mm. 



A single specimen. 



Closely allied to 31. congicus, Blgr. 



