Ceríaco, L. M. P., Marques, M. P., Schmitz, A., & Bauer, A. M. (2017).

The “Cobra-preta” of São Tomé Island, Gulf of Guinea, is a new species of
Naja Laurenti, 1768 (Squamata: Elapidae)

. Zootaxa, 4324(1), 121–141. https://doi.org/10.11646/zootaxa.4324.1.7