Synopsis of the Amphibians of Equatorial Guinea based upon the Authors’ Field Work and Spanish Natural History Collections Author Sánchez-Vialas, Alberto Museo Nacional de Ciencias Naturales (MNCN-CSIC), C / José Gutiérrez Abascal, 2. 28006, Madrid, Spain; Author Calvo-Revuelta, Marta Museo Nacional de Ciencias Naturales (MNCN-CSIC), C / José Gutiérrez Abascal, 2. 28006, Madrid, Spain; Author Castroviejo-Fisher, Santiago Laboratorio de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS). Av / Ipiranga, 6681, Prédio 40, sala 110, 90619 - 900, Porto Alegre, Brazil; * Corresponding author: IDlR (iriva @ mncn. csic. es) Author De, Ignacio Museo Nacional de Ciencias Naturales (MNCN-CSIC), C / José Gutiérrez Abascal, 2. 28006, Madrid, Spain; text Proceedings of the California Academy of Sciences 2020 2020-03-31 66 8 137 230 journal article 295393 10.5281/zenodo.11105986 4c7b4d3d-1fbe-4f48-8cb2-002e928eae42 0068-547X 11105986 Trichobatrachus robustus Boulenger, 1900 Photo figures 7D–E TYPE LOCALITY .— “ Benito River ”, Río Muni, Equatorial Guinea . DISTRIBUTION .— It ranges over the Gulf of Guinea , from Nigeria to Gabon and Democratic Republic of Congo and, more recently, was also recorded from Angola (Ernst et al. 2014:298). In Equatorial Guinea , it is only known from Río Muni , where the type locality is ( Boulenger 1900 ). It has been also found in Monte Alén (Río Bilene, close to lake Atoc [ De la Riva 1994 ] and Río Lobo [ Lasso et al. 2002 ]) and in Monte Mitra (Gonwouo and Nsang 2005) ( Map 7A ). SPECIMENS EXAMINED .— Three specimens . Mirador de Moka , Río Lobo , Evinayong , 21 May 1986 ( EBD 21019 ) ; Miboman (Bata), August 87 ( EBD 27496 ) ; Río Muni, Equatorial Guinea ( EBD 23072 ) .