VIPERIDAE 
VIPERINAE 
Bitis 
Causus 
Vipera 
arietans 
caudalis 
gabonica 
defilippi 
lichtensteinii 
resimus 
rhombeatus 
ammodytes 
aspis 
Bogert and Roth, 1966 
Carpenter, 1977 
Harvey, 1964 
Pitman, 1974 
Rose, 1962 
Shine, 1978 
Thomas, 1959, 1960, 1972 
Akester, 1983 
Akester, 1979a, 1979b 
Bogert and Roth, 1966 
Akester, 1979a 
Loveridge, 1942 
Schmidt and: Inger, 1957 
Bogert and Roth, 1966 
Curry-Lindahl, 1956 
Broadley and Cock, 1975 
Bogert and Roth, 1966 
Davis, 1936 
Froesch-Franzon, 1971 
Noble, 1937 
Pope, 1937 
hesWoper, Silic) sis} 
Carpenter, 1977 
Laue, 1974 
Shine, 1978 
Steward, 1971 
Thomas, 1959, 1960, 1961, 
1969, 1971 
Baumann, 1929 
Bogert and Roth, 1966 
Duguy.,, 1958 
Guibe and Saint Girons, 
1955 
Koster, 1932 
Naulleau, 1967 
Reuss, 1926 
Saint Girons, 1949 
Shine, 1978 
Steward, 1971 
