Fishes from Lalce Bangwelo. 645 



caudal. Pectoral spine not seriated on the outer border, | 

 the length of the fin. Ventrals twice as distant from the 

 extremity of the caudal as from tlie end of the snout. 

 Blackish brown, belly paler brown. 



Total length 200 mm. 



A single specimen. Native name: Malenfi. 



Closely allied to C. Theodorce, M. Weber, and C. amph.ci- 

 cauda, Blgr. Distinguished from both by the longer head. 



12. Schilhe mystus, L. 

 Native name : Luputa. 



13. Chrysichthys mahusi, sp. n. 



Depth of body 4| times in total length, length of head 3^ 

 times. Head once and a half as long as broad, with feeble 

 granular rugosities above; diameter of eye 6 times in length 

 of head, twice and \ in interorbital width; snout broadly 

 rounded, extending a little beyond lower jaw ; vomero- 

 pterygoid teeth forming a long but narrow band, narrowly 

 interrupted in the niiiidle ; nasal barbel nearly as long as eye ; 

 maxillary barbel half length of head, not reaching base of 

 pectoral spine. Dorsal 16; spine strong, serrated behind; 

 second soft ray longest, a little shorter than head ; adipose 

 tin a little longer than deep, its base f its distance from the 

 rayed dorsal. Anal IV 7. Pectoral spine half length of 

 head, very strongly serrated behind. Caudal fin deeply 

 notched, with pointed lobes. Caudal peduncle once and § as 

 long as deep. Olive-brown above, white beneath. 



Total length 250 mm. 



A single specimen. Native name : Mahusi. 



This species is characterized by its short maxillary l)arbel3, 

 combined with long dorsal rays and pointed caudal lob-;s. 



14. Auchenoglanis occidentalism C. & V. 

 Native name : Boica. 



15. Synodontis nigromaculatus, sp. n. 



Depth of body equal to length of head, 4 times in total 

 length. Head a little longer than broad ; snout rounded ; 

 diameter of eye 6 times in length of head, 2^ times in length 

 of snout and in interorbital width ; maxillary barbel without 

 distinct fringe, reaching middle of pectoral spine ; mandibular 

 barbels with long branches. About 30 slender mandibular 

 teeth. Humeral process sharply pointed, without keel. 



