A New Tree-Frog from Malawi (Hyperoliinae, Amphibia)

Abstract

Hyperolius spinigularis sp. nov. from Mlanje district of Malawi at ca. 655 metres, characterised by presence of prominent black asperities on male venter and particularly on gular disc. Descriptions and variations of external morphology, colour patterning, sexual dimorphism and dimensions. Juveniles described and compared with sympatric H. nasulus nasulus Günther and H. puncticulatus (Pfeffer). Notable absence of mating call discussed in relation to restricted habitat preferences. Notes on mating and egg deposition with brief description of tadpoles and their possible diagnosis. Observations on hibernation in captivity and disappearance of secondary sexual characters. Systematical note and comparison with H. köhleri Mertens.