Regions of Lakes Nyasa and Tanganyika. 441 



Family Ctenidae. 

 Genus Ctenus, Walck. 



Ctenus Johnstoni, F. Cambridge. 



Cte7nis Johnstoni, F. Cambridge, Proc. Zool. Soc. 1898, p. 21, pi. iii. 

 fig. 7. 



hoc. Zomba, 3000-9000 feet {II. H. Johnston). 



Ctenus Carsoni, F. Cambridge. 



Ctenus Carsoni, F. Cambridge, Proc. Zool. Soc. 1898, p. 24, pi. iii. 

 tigs. 4 a-b, 5 a-c. 



hoc. Kavala Island, Lake Tanganyika (A. Carson). 



Family Heteropod.id.ge. 

 Genus Selenops, Latr. 

 Selenops radiatus, Latr. 



Selenops radiatus, Latr. Nonv. Diet. xxx. p. 579 (1819) ( = S. omala- 

 soyna, Duf. ; cegyptiacus, Aud. ; annulipes and peregrinator, Walck., 

 &c. : teste Simon). 



Loc. Nyika plateau, 6000-7000 feet (A. Whyte) ; Kinyam- 

 kolo, Lake Tanganyika ( W. H. Nutt) . 



Genus Palystes, L. Koch. 



Palystes Johnstoni, Poc. 



Palystes Johnstoni, Poc. Ann. & Mag. Nat. Hist. (6) xvii. p. 67, pi. viii. 

 fig.l. 



Loc. Zomba, 3000-9000 feet {fl. H. Johnston). 



Palystes Ellioti, Poc. 



Palystes Ellioti, Poc. Ann. & Mag. Nat. Hist. (6) xvii. p. 58, pi. viii. 

 fig. 2. 



Loc. Between Kondowe and Karonga, 2000 feet ; Nyika 

 plateau, 6000-7000 feet; Masuku Mountain, 6000-7000 feet 

 {A. Whyte) ; also Lake Nyasa {Universities' Mission). 



This species was based upon specimens reported to be from 

 Uganda. Since, however, the species is evidently abundant 

 in Nyasaland, it is possible that there was an error in the 

 original locality, especially as Mr. Scott Elliot passed through 

 Nyasaland on his return journey from Mount Ruwenzori. 



