BioStor
 | Report on a collection of reptiles and fishes made by Miss. M. H. Kingsley during her travels on the Ogowe River and in Old Calabar Albert C L G Günther (1896) Annals and Magazine of Natural History 17: 261-285 |
 | Checklist of the reptiles and amphibians of East Africa A Loveridge (1957) Bulletin of The Museum of Comparative Zoology 117: 151-362 |
 | A new species of arboreal viper (Serpentes: Viperidae: Atheris) from Cameroon, Africa Lawson (1999) Proc. Biol. Soc. Wash 112: 793-803 |