Nectophrynoides occidentalis Angel, 1943 Nectophrynoides liberiensis Xavier, 1979 "1978" Nimbaphrynoides liberiensis (Xavier, 1979) Nimbaphrynoides is a monotypic genus of true toads[4][5] from highlands in the Mount Nimba region of the West African countries of Guinea, Liberia, and Côte d'Ivoire.

[3] Along with Nectophrynoides, Eleutherodactylus jasperi, and Limnonectes larvaepartus, Nimbaphrynoides is one of the only anurans that combine internal fertilization with ovoviviparity.

However, acknowledging the significant differences in size and that small genetic differences do exist,[8] they are still retained as subspecies:[3][5][8] Adult males of Nimbaphrynoides occidentalis occidentalis measure on average 18 mm (0.7 in) and adult females on average 20.5 mm (0.8 in) in snout–vent length.

[8] Future threats include a proposed iron ore mining concession and the arrival of a large contingent of refugees.

Part of the population is protected by the Mount Nimba Strict Nature Reserve, although improved management of the site is required.