Cardioglossa escalerae Boulenger, 1903
TYPE LOCALITY.— “Cap Saint Jean, Guinée espagnole” (Cabo San Juan, Río Muni, Equatorial Guinea) .
DISTRIBUTION.— This species occurs in lowland rainforests from Cameroon and Equatorial Guinea to Central African Republic and Democratic Republic of Congo. In Equatorial Guinea, it has been recorded at the type locality, and at Monte Alén by Lasso et al. (2002) (Map 4A).
COMMENTS.— This is a poorly known species. Amiet and Goutte (2017) provided an account including the call spectrum.
SPECIMENS EXAMINED.— No specimens were found in the collections examined by us in this study.