Dipsadoboa unicolor Günther, 1858

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 : 71

Dipsadoboa unicolor Günther, 1858

Dipsadoboa unicolor Günther, 1858: 138 . Type locality: “ West Africa ”.

Dipsadoboa unicolor viridiventris Laurent, 1956a: 206 . Type locality; “ Lubero , Kivu, Zaire ”.

Distribution. It extends from Guinea-Bissau to Uganda. In Equatorial Guinea it has been recorded in Bioko ( Günther 1896; Boulenger 1896; Rasmussen 1993) at Musola ( Boulenger 1906) and in Río Muni at Benito River ( Boulenger, 1900) and Monte Alén National Park ( Lasso et al. 2002) ( Map 19C ).

Comments. See account of Dipsadoboa viridis for the identity of Bocage’s (1895a) record from Bioko. Mertens (1964) highlighted some difficulties on the identification of D. viridis and D. unicolor , which were later examined by Rasmussen (1993). Branch et al. (2019) revealed that specimens morphologically identified as D. unicolor from Cameroon and Uganda do not form a monophyletic group, being a specimen of D. unicolor from Cameroon more closely related to D. underwoodi than to a specimen identified as D. unicolor from Uganda. Thus, it is likely that this taxon includes more species. Boulenger (1905) identified D. unicolor among the species collected in Cabo San Juan by M. Martínez de la Escalera. However, after the revision of these specimens of Dipsadoboa housed in the MNCN, we reidentified them as D. viridis based on several morphological traits (see the account of D. viridis for morphological details).

Specimens examined. No specimens were found in the examined collections.

Figures

MAPS 19 A–C. Distribution maps for Equatorial Guinean records of (A) Dipsadoboa duchesnii; (B) Dipsadoboa underwoodi; (C) Dipsadoboa unicolor.