Amphibian diversity of a West African biodiversity hotspot: an assessment and commented checklist of the batrachofauna of the Ivorian part of the Nimba Mountains Author Kanga, Kouassi Philippe Université Jean Lorougnon Guédé, Laboratoire de Biodiversité et Ecologie Tropicale (BioEcoTrop), Daloa, BP 150, COTE D’IVOIRE Author Kouamé, N’Goran Germain Université Jean Lorougnon Guédé, Laboratoire de Biodiversité et Ecologie Tropicale (BioEcoTrop), Daloa, BP 150, COTE D’IVOIRE ngoran_kouame@yahoo.fr Author Zogbassé, Parfait Université Jean Lorougnon Guédé, Laboratoire de Biodiversité et Ecologie Tropicale (BioEcoTrop), Daloa, BP 150, COTE D’IVOIRE Author Gongomin, Basseu Aude-Inès Université Jean Lorougnon Guédé, Laboratoire de Biodiversité et Ecologie Tropicale (BioEcoTrop), Daloa, BP 150, COTE D’IVOIRE Author Agoh, Konan Laurent Université Jean Lorougnon Guédé, Laboratoire de Biodiversité et Ecologie Tropicale (BioEcoTrop), Daloa, BP 150, COTE D’IVOIRE Author Kouamé, Akoua Michèle Université Nangui Abrogoua, Pôle de Recherche Pêche et Aquaculture, UFR-SGE, 02 BP 801, Abidjan 02, COTE D’IVOIRE Author Konan, Jean Christophe B. Y. N. Université Nangui Abrogoua, Pôle de Recherche Pêche et Aquaculture, UFR-SGE, 02 BP 801, Abidjan 02, COTE D’IVOIRE Author Adepo-Gourène, Abouo Béatrice Université Nangui Abrogoua, Pôle de Recherche Pêche et Aquaculture, UFR-SGE, 02 BP 801, Abidjan 02, COTE D’IVOIRE Author Gourène, Germain Université Nangui Abrogoua, Pôle de Recherche Pêche et Aquaculture, UFR-SGE, 02 BP 801, Abidjan 02, COTE D’IVOIRE Author Rödel, Mark-Oliver Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstr. 43, 10115 Berlin, GERMANY text Amphibian & Reptile Conservation 2021 e 275 2021-06-27 15 1 71 107 journal article 296936 10.5281/zenodo.11287122 fd72f90b-5100-43fc-9963-19f91090830b 1525-9153 11287122 Nimbaphrynoides occidentalis (Angel, 1943) Nimba Toad Material : No voucher. Comments : Nimbaphrynoides occidentalis is a unique toad, being viviparous and endemic to a very limited range of a total of 4 km 2 on the ridges of the Mounts Nimba between Liberia , Guinea , and Ivory Coast ( Lamotte 1959 ; Lamotte and Sanchez-Lamotte 1999 ; Hillers et al. 2008b ; Sandberger-Loua et al. 2016 , 2017 ). The toads live in montane grasslands above 1,200 m asl, where they go into dormancy during the dry season ( Lamotte 1959 ; Hillers et al. 2008; Sandberger et al. 2010 ). Nimbaphrynoides occidentalis comprises two subspecies isolated by a forested mountain ridge: the larger N. occidentalis liberiensis is restricted to one site in Liberia , while N. occidentalis occidentali s occurs in a few sub-populations in Guinea and Ivory Coast ( Sandberger et al. 2010 ). We found N. occidentalis occidentalis at 1,235 m asl, on very humid steep slopes in the montane grassland ( 07°35.555’N , 008°25.788’W ; 1,235 m asl). Four juveniles and one female were discovered under rocks. The sizes of the juveniles ranged from 12.0‒14.0 mm while the female measured 23.0 mm. The basic dorsal color of the juveniles was dark brown, with a somewhat irregular mixture of light brown and white spots. Their snout, eyelids, and legs were colored light brown. The juveniles showed a pattern typical for adult males ( Fig. 7A ), whereas the female had a nearly uniform light brown dorsal color ( Fig. 7B ). The main threat for this species in Ivory Coast is bush fires in the dry season. A detailed assessment of the distribution and population sizes of N. occidentalis occidentalis from Ivory Coast is urgently needed.