The four species of Ptychadena recorded in Mauritania: Ptychadena bibroni from Gourel Yoba, Senegal; male specimen, not collected (A), Ptychadena trinodis from Toubakouta, Senegal; male specimen, not collected (B), Ptychadena cf. mascareniensis from Zoueina, Mauritania (MNCN 41784, SVL=29.6 mm) (C), Ptychadena schillukorum from Aleg, Mauritania (MNCN 42214, SVL=31.8 mm) (D) [photos Alberto Sánchez Vialas (A, B), José Manuel Padial (C) and Rafael Márquez (D)].