Ancylodactylus koehleri ( Mertens, 1937 )

Sánchez-Vialas, Alberto, Calvo-Revuelta, Marta & Riva, Ignacio De La, 2022, Synopsis of the terrestrial Reptiles of Equatorial Guinea, Zootaxa 5202 (1), pp. 1-197 : 31

Ancylodactylus koehleri ( Mertens, 1937)

Figure 7C

Cnemaspis köhleri Mertens, 1937 . Type locality: Buéa , Cameroun.

Cnemaspis africanus köhleri Mertens, 1937 : Loveridge 1947: 90.

Ancylodactylus koehleri ( Mertens, 1937) : Malonza & Bauer 2022.

Distribution. This species occurs in Cameroon and Equatorial Guinea. In Equatorial Guinea it has been recorded from Río Muni at Benito River based on a single female specimen held at the British Museum ( Thys van den Audenaerde (1967) [cited as C. africana (Werner, 1896) ]; Perret 1986) ( Map 6A ).

Comments. The genus Ancylodactylus has been recently proposed to include all the African species formerly treated within Cnemaspis (Malonda & Bauer, 2022) . Thys van den Audenaerde (1967) recorded the specimen housed in the British Museum as C. africana , noticing that it was distinct from A. koehleri . However, after the revision of the genus Cnemaspis of Africa by Perret (1986), this specimen was treated as C. koehleri . A single specimen of the genus Ancylodactylus was collected on Bioko at Caldera de Luba, Hormigas Camp, by Rayna Bell in 2013 and held at the Herpetological Collection of the Cornell University Museum of Vertebrates (catalog number: R-0014927). Based on the morphological traits and the phenotype exhibited ( Figure 7C ), we identify it as A. koehleri , extending its distribution to Bioko.

Specimens examined. No specimens of this taxon were found by us in the examined collections.

Figures

MAPS 6 A–C. Distribution maps for Equatorial Guinean records of (A) Ancylodactylus koehleri; (B) Hemidactylus angulatus (question mark represents a dubious record; see species account); (C) Hemidactylus aporus.

FIGURE 7. From left to right: dorsal, lateral, and ventral views of the head of: Agama lebretoni (A–B), male (A: MNCN 4725) and female (B: MNCN 4726); and dorsal and ventral views of Ancylodactylus koehleri (C) (R-0014927). Photos: AS-V (A–B) and Cornell University Museum of Vertebrates (C).