210 



G. A. BOULENGER 



Vipei'idae. 



108. Causus rhombeatus, Licht 

 Portuguese Guinea: Rio Cassine. 

 104. Causus lichtensteinil, Jan. 

 Cameroon: Buea, 000-1200 m. 

 French Congo : Fernand Vaz. 

 10^3. Bit is arietans, Merr. 

 Portuguese Guinea: Bolama. 

 100. Bitis nasicornis, Shaw. 

 Fernando Po: Moka, 1300-1500 m. 



107. Athens squamiger, Hallow. 

 Fernando Po : Moka, 1300-1500 m. 

 French Congo: Fernand A^az. 



108. Atractaspis aterrima, Gthr. 

 Portuguese Guinea: Bolama. 



