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 Arthroleptis aff. poecilonotus Photo figures 3D–E TYPE LOCALITY .— Unknown taxonomic identity (see comments) . DISTRIBUTION .— Members of the Arthroleptis poecilonotus species complex are widely distributed, ranging from Guinea-Bissau to Uganda , and southwards to Gabon , Congo and Central African Republic . In Equatorial Guinea , it has been recorded both in Río Muni at Cabo San Juan ( Boulenger 1900 , 1903 ), Monte Alén ( De la Riva 1994 ) and in several localities on Bioko ( Mertens 1965 ; Hydeman et al. 2017 ) ( Map 2C ). COMMENTS .— See comments on A. adelphus . Phylogenetic evidence suggests that under the name A. poecilonotus Peters, 1863 there is a species complex comprising multiple allopatric species from (1) Western Ghana and Sierra Leone , (2) Togo Hills of Eastern Ghana, (3) Cameroon , and (4) Bioko ( Blackburn 2008 ) . The lineage identified from Bioko by Blackburn (2008) was formally described as A. bioko ( Blackburn 2010 ) . Arthroleptis poecilonotus has two available synonyms, A. macrodactylus Boulenger, 1882 described from Gabon and A. inguinalis Boulenger, 1900 described from Benito River ( Equatorial Guinea ). As the type locality of A. poecilonotus is in Ghana (Holländischen Besitzungen (Boutry) [ Ghana ] an der Küste von Guinea ), the different lineage from Cameroon , and also, the unstudied populations from Gabon and Equatorial Guinea deserve other nomenclatural denominations once an exhaustive taxonomic revision is made. SPECIMENS EXAMINED .— 26 specimens . Patio Alosa (Niefang), 14 August 1985 ( EBD 21033 ) ; Cabo San Juan , Río Muni , 21 August 1901 ( MNCN 3921–3942 ) ; Río Muni , 21 August 1901 ( MNCN 3958 ) ; Río Muni , Cabo San Juan , 25 May 1901 ( MNCN 3997–3998 ) .