SILURID.E. 297 



A^entral small, If to 2 times as distant from caudal as from end of snout. 

 Anal 50-57, reaching caudal, which is forked, with pointed lobes, and 

 extends on caudal peduncle. Yellowish, more or less speckled with 

 brown on the back and sides; a black humeral spot ; a black line along 

 the side, widening a little before reaching base of caudal fin; a series 

 of large black dots at base of anal, one to each ray ; fins Nvhite. 

 Total length 67millim. 

 Chiloango and Lucola River near Cabinda. 



1-2. Types. Chiloanoo R. at Mayili. Dr. W. J. Ansorge (C). 



3-6. Types. Lnali R. at Lundo. ,, 



7. Type. Luculla R. 



8-12. Types. Lucola R. near Cabinda. „ 



Distinguished from P. somalensis by the shorter barbels and the lower 

 number of anal rays. 



Fie;. 179. 



PhysaiUa viUiersi. 

 Type (A. M. C). 



13. PARAILIA, Blgr. 



2. PARAILIA LONGIFILIS, Blgr. 

 Add ;— 

 3-5. Hgr. Geba R. at Bafata, Rortug. Guinea. Dr. W. J. Ansorge (C). 



U. BAGRUS, Cuv. 

 1. BAGRUS BAYAD, Forsk. 

 Pellegr. Poiss. Bass. Tchad, p. 06, pi. ix. fig. 4 (1914). 



