Astylosternus robustus (Boulenger, 1903)

Lobón-Rovira, Javier, Lobón-Rovira, Baptista, Ninda L, Clark, Tyron, Verburgt, Luke, Jongsma, Gregory Fm, Conradie, Werner, and, Luis Veríssimo, Vaz, Pedro & Pinto, 2025, Filling the gaps: herpetological checklist of Mayombe National Park and Cabinda Province (Angola) shed light on one of the most unexplored corners of tropical Central Africa, African Journal of Herpetology 74 (1), pp. 1-59 : 1-59

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

Figures

Figure 4. Species of the families Arthroleptidae, Bufonidae and Dicroglossidae recorded from Mayombe National Park and Cabinda Province, Angola. Codes in brackets represent field tissue numbers. A. Arthroleptis adelphus from Miconge, Upper Mayombe (P3.186). B. A. carquejai (P3.123) and C. A. aff. poecilonotus (P3.119) from Sanga Wanda, Lower Mayombe. D. A. sylvaticus from Miconge, Upper Mayombe (P2.194). E. Cardioglossa leucomystax from Vaku (P2.031) and from F. Miconge (P2.218), Upper Mayombe. G. Leptopelis aubryi from Mbundu, Lower Mayombe (P3.214). H. L. cf. aubryioides (P3.514), I. L. boulengeri (P3.523) and J. L. cf. calcaratus (P3.513) from Sanga Wanda, Lower Mayombe. K. L. cf. jordani (P3.163) from Lombe River, Vaku, Upper Mayombe. L. L. millsoni (P9.070) from South of Dinge. M. L. ocellatus (P3.113) from Sanga Wanda, Lower Mayombe. N. L. rufus (P2.045) from Vaku, Upper Mayombe O. Scotobleps gabonicus (P3.139) from Chimbete, Lower Mayombe. P. Trichobatrachus robustus (P2.181) from Miconge, and Q. Nectophryne afra (P2.063) from Vaku, Upper Mayombe. R. N. aff. batesii (P3.224) from Mbundu, Lower Mayombe. S. Sclerophrys sp. (P2.042) from Vaku, Upper Mayombe. T. S. pusilla (P2.094) from Sanga Mongo, Lower Mayombe. U. S. regularis (P1.142) from Tando Zinze. V. S. tuberosa (P3.509) from Sanga Wanda, Lower Mayombe. W. Hoplobatrachus occipitalis (P9.073) from South of Dinge. Photographs by PVP (A–J, L, N, P–T, V–W), JLR (K, M, O) and TB (U).