Synopsis of the terrestrial Reptiles of Equatorial Guinea Author Sánchez-Vialas, Alberto Author Calvo-Revuelta, Marta 0000-0002-8628-1055 Author Riva, Ignacio De La 0000-0001-5064-4507 albertosv@mncn.csic.es text Zootaxa 2022 2022-11-03 5202 1 1 197 http://dx.doi.org/10.11646/zootaxa.5202.1.1 journal article 182444 10.11646/zootaxa.5202.1.1 45ba25c1-47a9-4001-93d9-294815bf37e7 1175-5326 7285600 BF4831D2-D98B-4265-9138-03DB8607B826 Polemon notatus (Peters, 1882) Figure 24C Microsoma notatum Peters 1882a: 127 . Type locality: originally not stated. Designated as Cameroon by Chirio & LeBreton (2007) . Cynodontophis aemulans Werner 1902 . Type locality: “ Congo ”. Polemon notatus aemulans Trape, J.F. & R. Roux-Estève 1995: 43 . Distribution . This species ranges from Cameroon to the western region of Central African Republic and Democratic Republic of the Congo . In Equatorial Guinea it has been recorded in Río Muni at Monte Alén National Park ( Lasso et al. 2002 ) ( Map 27B ). Comments. Two subspecies are recognized on the basis of ventral scale number, P. notatus notatus and P. notatus aemulans ( Werner, 1902 ) . In Equatorial Guinea the nominal subspecies is present. The phylogenetic relationships of Aparallactinae are discussed by Portillo et al. (2018) ; among the included species of Polemon in this study, P. notatus represents the most phylogenetically differentiated lineage ( Portillo et al. 2018 ). Specimens examined. One specimen. Río Muni : Monte Alén National Park (in the EBD collection, without EBD number). FIGURE 24. From left to right: lateral, dorsal and ventral views of the head of: Aparallactus modestus (A) (EBD 27538), Polemon collaris (B) (EBD 20943), and Polemon notatus (C) (in the EBD collection, without EBD number). Photos: AS-V. ATRACTASPIDINAE