Hyperolius tuberculatus (Mocquard, 1897) Photo figures 17E–G

TYPE LOCALITY.— “Lambaréné”, Gabon .

DISTRIBUTION.— This species extends over rainforests from southeastern Nigeria to western Central African Republic, and southwards to Republic of Congo and Democratic Republic of Congo. In Equatorial Guinea, it has been recorded from both Río Muni (De la Riva 1994; Bell et al. 2017) and Bioko (Bell et al. 2017) (Map 18C).

COMMENTS.— Mertens (1965) cited Hyperolius concolor (Hallowell, 1844) on Bioko (Moca lake surroundings) but this record likely represents a misidentification with H. tuberculatus, which has a similar dorsal pattern at juvenile stages, and it is a very common species around that locality (surprisingly, no records of H. tuberculatus were provided by Mertens [1965]). Thus, we exclude H. concolor —a species distributed from Sierra Leona to western Cameroon —from the amphibian list of Equatorial Guinea. Phylogeographic patterns of this species were studied by Bell et al. (2017). Descriptions of the advertisement calls from Monte Alén were provided by Bosch et al. (2000).

SPECIMENS EXAMINED.— Twenty-two specimens. Asonga (Bata-Niefang), 12 October 1984 (EBD 18256–18260), 09 October 1984 (EBD 18261–18263), 24 April 1985 (EBD: 21006–21007); Engong (Aconibe-Asoc), 01 May 1987 (EBD 25072); Ayamiken, San Joaquín de Ndyiacom, 1990 (11 specimens, without individual voucher numbers, EBD 31516) .