Nimbaphrynoides

Nimbaphrynoides is a monotypic genus of true toads from highlands in the Mount Nimba region of the West African countries of Guinea, Liberia, and Côte d'Ivoire. The sole species is Nimbaphrynoides occidentalis. Along with Nectophrynoides, Eleutherodactylus jasperi, and Limnonectes larvaepartus, Nimbaphrynoides is one of the only anurans that combine internal fertilization with ovoviviparity.

==Taxonomy and systematics== Nimbaphrynoides occidentalis was first described as Nectophrynoides occidentalis by Fernand Angel in 1943. A second species from Mount Nimba, Nectophrynoides liberiensis, was described in 1979. The two were then transferred to a newly erected genus Nimbaphrynoides in 1987. The two species were similar except for the larger size of N. liberiensis compared to N. occidentalis and some small colour differences. However, their calls are similar, and the genetic differences are minor. On this basis, they have been judged to be the same species. However, acknowledging the significant differences in size and that small genetic differences do exist, they are still retained as subspecies: Nimbaphrynoides occidentalis occidentalis — Western Nimba toad, Mount Nimba viviparous toad Nimbaphrynoides occidentalis liberiensis — Liberia Nimba toad