Astylosternus robustus (Boulenger, 1903)

Figure 4P

Material. ANGOLA – Cabinda Province • Mayombe NP, Miconge; –4.4860, 12.8780; 377 m a.s.l.; FKH 1023; GenBank: PQ455957 .

Identification. A large species (SVL = 90–130 mm) in a monotypic genus, with reproductive males developing hair-like appendages on the lower parts of the hind limbs (Channing and Rödel 2019). Only one specimen was recorded during this study, and it differs by 1.2% (16S p -distance) from other material from Serra do Pingano, Uíge Province, Angola (GenBank: HG940465) and by 2.6% from material from Cameroon (GenBank: KF991265).

Biology and distribution. It has a wide distribution in lowland forests and submontane streams from Nigeria southwards to northwestern Angola (Channing and Rödel 2019; Ernst et al. 2020). The specimen reported here was an adult male found perched on a rock in the middle of a fast-flowing river close to a waterfall in Upper Mayombe.

Bufonidae