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 Sclerophrys tuberosa (Günther, 1858) Photo figures 11C–E TYPE LOCALITY .— “ Fernando Po ”, Bioko , Equatorial Guinea . DISTRIBUTION .— It occupies the tropical forest of the Gulf of Guinea region from Cameroon to Gabon , Congo and Democratic Republic of Congo . In Equatorial Guinea , this species occurs both on Bioko and in Río Muni . Within Bioko it has been recorded from several localities ( Mertens 1965 ; Boulenger 1900 ), while it is only known from two localities in the continental region of Río Muni ( Boulenger 1903 ; De la Riva 1994 ) ( Map 13A ). COMMENTS .— Populations from Río Muni appear morphologically different from those on Bioko and in Cameroon . Phylogenetic relationships within the genus were studied by Liedtke et al. (2016) based on molecular data. SPECIMENS EXAMINED .— Twelve specimens . Nvom (Aconibe-Asoc), 08 May 1987 ( EBD 25026 ) ; Acocnseng (Km 10 Aconibe-Asoc), 30 May 1987 ( EBD 25027 ) ; UPM camp-Riaco river, Caldera de Luba , Bioko , 03°20ʹ46.54ʺN , 08°29ʹ48.20ʺE , 14 December 2005 ( MNCN 46709– 46710 , 46712 ), 13 December 2005 ( MNCN 46711 ) ; Moaba , Bioko , 03°14ʹ01.41ʺN , 08°37ʹ19.64ʺE , 21 November 2003 ( MNCN 48870 ) ; top of trail into Caldera de Luba , Bioko , 3°20ʹ5.02ʺN , 8°29ʹ14.33ʺE , 26 November 2003 ( MNCN 48871–48873 ) ; surroundongs of BBPP camp, 03°20ʹ47.32ʺN , 08°29ʹ48.44ʺE , 26 and 27 November 2003 ( MNCN 48874–48875 , respectively) .