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 collaris (Peters, 1881) Figure 24B Microsoma collare Peters 1881b: 148 . Type locality: “Macange, Cuango, West-Afrika”, Malanje , Angola . Miodon collaris collaris Witte & Laurent, 1947: 70 . Miodon collaris brevior Witte & Laurent, 1947: 69 . Type locality: “Vieux-Calabar”, Calabar , Nigeria . Miodon collaris longior Witte & Laurent, 1947: 72 . Type locality: “Medje (Uele)”. Polemon collaris (Peters 1881) : Welch 1994: 99 . Distribution . Widespread in Central Africa from Nigeria to Uganda , south to Angola . In Equatorial Guinea it has been recorded both in Bioko ( Bocage 1895 a , 1903) and in Río Muni at Monte Alén National Park ( Lasso et al. 2002 ) ( Map 27A ). Comments. Loveridge (1944) mentioned the presence of this species in Bioko (“Fernando Po: Spanish Guinea : Esong , near Bakossiberge ”); however, the locality provided corresponds to a region placed in Cameroon . Consequently , we exclude this record from this catalogue. At first sight, it can be confused with Polemon fulvicollis , but they are readily differentiated by the pholidosis pattern, among other traits. The specimens from the EBD B9272, B9273, EBD 18270 and EBD 20943, present the following numbers of subcaudals, respectively: 23, 17, 18 and 20. The number of ventral scales for the specimens EBD 18370 and EBD 20943 are 216 and 200, respectively . Specimens examined. Four specimens. Río Muni : San Joaquín de Ndyiacom , 1990 ( EBD 31526 for two specimens with the field numbers B9272 and B9273); Moca, Evinayong, 15 June 1986 ( EBD 20943) ; without specific locality ( EBD 18370) .