FIGURE 4. Audiospectrograms and oscillograms of advertisement calls of six species of Guibemantis of the subgenus Pandanusicola. A, call series (containing 3 calls) of Guibemantis rianasoa sp. nov., recorded on 19 November 2022 at Andasibe. Recording high-pass filtered at 2000 Hz. B, two calls of Guibemantis ambakoana sp. nov., recorded on 19 November 2022 at Andasibe. Recording high-pass filtered at 1500 Hz. C, three calls of Guibemantis vakoa sp. nov. recorded on 15 February 2004 at Besariaka. Recording band-pass filtered at 1500–9200 Hz. D, call series (containing 5 calls) of Guibemantis methueni recorded on 8 November 2011 at Andasibe. Recording high-pass filtered at 1000 Hz. E–F, calls of G. annulatus (from Lehtinen et al. 2011) and G. pulcher (from Vences et al. 2011).

Published as part of Gabriel, Hugh, Rothe, Laila-Denise, Köhler, Jörn, Rakotomanga, Sandratra, Edmonds, Devin, Galán, Pedro, Glaw, Frank, Lehtinen, Richard M., Rakotoarison, Andolalao & Vences, Miguel, 2024, Unexpected diversity and co-occurrence of phytotelmic frogs (Guibemantis) around Andasibe, one of the most intensively surveyed amphibian hotspots of Madagascar, and descriptions of three new species, pp. 451-485 in Zootaxa 5397 (4) on page 462, DOI: 10.11646/zootaxa.5397.4.1, http://zenodo.org/record/10469003