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 Philothamnus carinatus (Anderson, 1901) Figure 18C Chlorophis carinatus Andersson, 1901: 9 . Type locality: “Mapanja, Cameroon ” and “ Cameroon ”. Restricted to Mapanja by Mertens (1964). Philothamnus nigrofasciatus Buchholz & Peters, 1875: 199 . Type locality: “Cameruns”. Philothamnus heterodermus carinatus Andersson, 1901 : Loveridge 1951: 6 . Distribution . This species is widespread from West Africa ( Guinea Konakry) to East Africa ( Kenya ) and southward to southern Democratic Republic of the Congo . In Equatorial Guinea it has been recorded in Bioko at Bococo ( Mertens 1941 ; Loveridge 1958 ), Moka ( Mertens 1964a ) and Bahía de San Carlos ( Boulenger 1906 ; Capocaccia 1961a ), and in Río Muni at Monte Alén National Park ( Lasso et al. 2002 ), including Monte Mitra ( Gonwouo & Nsang 2005 ) ( Map 21B ). Comments. All the specimens examined by us have 13 scale rows at mid-body. This species was treated by some authors as a subspecies of P. heterodermus ( Loveridge 1958 ) . However, it has been suggested that P. carinatus could represent a species complex ( Engelbrecht et al. 2019 ). It is formed by at least two main clades, one ranging across Gabon-western Republic of the Congo and the other occurring at the eastern of Democratic Republic of the Congo ( Engelbrecht et al. 2019 ). The Philothamnus carinatus species complex is sister to P. heterodermus ( Engelbrecht et al. 2019 ) . The specimen recorded from Bahía de San Carlos, Bioko, by Boulenger (1906) was subsequently cited by Loveridge (1958) as P. heterodermus heterodermus and re-identified by Capocaccia (1961a) as P. heterodermus carinatus . Based on the number of scale rows at mid-body (13 scale rows), we follow Capocaccia (1961a) and Mertens (1964) in considering this specimen as P. carinatus . Specimens examined. Eleven specimens. Río Muni : Miboman , 1985–1986 ( EBD 20927–20930 ) ; Miboman ( 30 km from Niefang), 25 February 1987 ( EBD 25018, EBD 25020–25021 ) ; Miboman (road to Niefang), 28 July 1987 ( EBD 27548) ; Miboman, 06 September 1986 ( EBD 20792) ; Ayamiken, 01 August 1986 (EBD 25019, EBD 25022) .