BioStor
 | A revised list of the South African reptiles and batrachians, with synoptic tables, special reference to the specimens in the South African Museum, and descriptions of new species G A Boulenger (1910) Ann. South African Mus. 5: 455-538 |
 | Revision of five African snake genera Arthur Loveridge (1958) Bulletin of the Museum of Comparative Zoology 119(1): 1-198 |