Ptychadena perreti Guibé & Lamotte, 1958

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

Ptychadena perreti Guibé & Lamotte, 1958

Figure 7P

Material. ANGOLA – Cabinda Province • Mayombe NP, Sanga Wanda; –4.6253, 12.4583; 221 m a.s.l.; FKH 1256 , P3.206, P3.531; GenBank: PQ455928–30. • Mayombe NP, Bata Lunhuca; –4.5981, 12.4597; 215 m a.s.l.; P4.091; GenBank: PQ455927. • Mayombe NP, Miconge; –4.4860, 12.8780; 377 m a.s.l.; FKH 1050 , P2.215–16, P2.229; GenBank : PQ455931−34.

Identification. A medium to large grass frog (SVL = 48–64 mm) with compact body and long legs. The specimens reported here present continuous median and post-eyelid folds, and a short but continuous dorsolateral fold, with continuous external fold, and the lack of sacral ridges ( Channing and Rödel 2019). Brownish dorsum with black speckles or a green vertebral line from snout to hind limbs ( Figure 7P ). Material from this work differs by 0.4% (16S p -distance) from material assigned to Ptychadena bibroni collected in Gabon (GenBank: AY517604 ), from material from Mount Kupe, Cameroon (GenBank: KX671789 ) ascribed to Ptychadena aff. aequiplicata by Portik et al. (2016), also differs by 0.4–0.6% (16S p -distance) from material from the Republic of the Congo (GenBank: KY080384 –85) ascribed to Ptychadena sp. B by Deichmann et al. (2017). However, Nečas et al. (2024) demonstrated that all those GenBank sequences have been the result of a long-standing confusion within this group, and demonstrate that they all represent indeed material of P. perreti . Thus, we consider Angolan material as conspecific to that from Gabon, Cameroon and Republic of Congo, representing the southwestern most record of the species.

Biology and distribution. This species is a forest-obligate distributed from Cameroon to Cabinda Province ( Channing and Rödel 2019). The specimens collected were found along trails in the forest and near forest streams. All the material from Cabinda Province was collected from Mayombe NP between 200−400 m a.s.l. and represents a new country record.

Figures

Figure 7. Species of the families Phrynobatrachidae, Pipidae, Ptychadenidae, Ranidae and Rhacophoridae recorded from from Mayombe National Park and Cabinda Province, Angola. Codes in brackets represent field numbers. A. Phrynobatrachus auritus (P2.057) and B. (P2.033) from Vaku, Upper Mayombe, C. (P3.141) from Chimbete and D. (P3.191) from Sanga Wanda, Lower Mayombe. E. P. aff. parvulus (P2.115) from Caio Cacungo. F. Amplectant pair of P. aff. parvulus from Sanga Wanda, G. (P3.135) from Chimbete, and H. (P3.124) Mbundu, Lower Mayombe. I. Phrynobatrachus sp. (P2.196) from Miconge, Upper Mayombe. J. Xenopus (Xenopus) allofraseri (P3.121) and K. Xenopus (Xenopus) andrei (P3.533) from Sanga Wanda, Lower Mayombe. L. Xenopus (Silurana) mellotropicalis (P3.176), from Quissoki, Upper Mayombe. M. Hymenochirus feae (P3.544) from Mbundo, Lower Mayombe. N. Ptychadena anchietae (P3.107) from Sanga Wanda, Lower Mayombe. O. Ptychadena mascareniensis OUT 6 (P3.168), Lombe River, Vaku, Upper Mayombe. P. Ptychadena perreti (P2.214) from Miconge, Upper Mayombe Q. Ptychadena taenioscelis (P1.141) from Tando Zinze. R. Hylarana (Amnirana) albolabris (P3.154) from Quissoki and S. Hylarana (Amnirana) aff. lepus (P2.187) from Miconge, Upper Mayombe. T. Chiromantis rufescens (P9.072) from South of Dinge. Photographs by PVP (A–E, G–T), JLR (F).