280 THROUGH ANGOLA 



(Andala). The Cobras include Naia haje (Cuiba), 

 N. anchietce, N. nigricollis (which can eject its 

 venom to some distance and blind its enemy), and 

 A 7 , annulata. The Vipers include the Puff Adder, 

 V . arietans (Buta), V. rhinoceros, V. caudalis, and 

 V . heraldica ; the Night Adder, Causus rhombeatus 

 (Bandargila) and C. resimus (Banda emfila). Non- 

 poisonous snakes include the Pythons, P. natalensis, 

 P. sebce, and P. anchietce ; Helicops bicolor (Muzuzu), 

 Boodon lineatus (On jo), Philothamnus irregularis* 

 P. heterolepidotus (Chilembe), and P. dorsalis 

 (Lubio) ; Prosymna frontalis (Golongo), Rhagerhis 

 tritceniata (Uconjolo), R. acuta (Colombolo), Psam- 

 mophis sibilans (Uanga), Dryiophis Kirtlandii 

 (N'hoca-menha), Bucephalus capensis (Turulan- 

 gila), and Crotaphopeltis rufescens (Bandangila). 



FISHES. Of the numerous Sea fishes, the 

 Pongo has the curious habit of making a drumming 

 noise against the hulls of fishing vessels ; while 

 the liver of a Dog-fish (Cassao) yields oil. Of 

 River fish, there are the curious snouted fish, 

 Genyomyrus donnyi, and Gnathomemus numenius ; 

 and the Mud Fish (Protoptcrus anectans), which 

 which can bury itself in mud. 



Of sporting fish, the Barbers, Clarias silurus 

 (Bagre) and C. gariepinus, are ground feeders; the 

 big Yellow Fish (Varicorhinus brucei) occasionally 

 takes fly ; the Tiger Fish (Hydrocyon lineatus) is 

 the finest fighter of the fly-taking fish, but can 

 bite through ordinary tackle with his strong 

 teeth. 



