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 Grayia caesar (Günther, 1863) Figure 22B Xenurophis caesar Günther, 1863: 357 . Type locality: “Fernando Po”, Bioko , Equatorial Guinea . Grayia caesar (Günther, 1863) : Boulenger 1909: 944 . Distribution . Central Africa, from Bioko and Cameroon to Democratic Republic of the Congo ; it extends southward to Cabinda (northern Angola ) ( Chippaux & Jackson 2019 ; Marques et al. 2018 ). In Equatorial Guinea it has been recorded from Bioko ( Günther 1863a ; Boulenger 1894 ; Bocage 1903 ) ( Map 24C ). Comments. There are no precise records of this species for Bioko. We provide the first records of this species for Río Muni . Specimens examined. Two specimens. Río Muni : San Joaquín de Ndyiacom (road from Bata to Ayamiken), February 1987 ( EBD 25028); Miboman ( 30 km from Bata), 14 October 1985 ( EBD 20945) .