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Issue: Vol. 5647 No. 3: 16 Jun. 2025
Type: Article
Published: 2025-06-16
DOI: 10.11646/zootaxa.5647.3.3
Page range: 260-274
Abstract views: 193
PDF downloaded: 11

A new species of mantellid frog of the genus Guibemantis from south-eastern Madagascar

Biodiversity Institute and Department of Ecology and Evolutionary Biology; University of Kansas; Lawrence; KS 66045–7561; USA; Museum of Natural Sciences and Department of Biological Sciences; Louisiana State University; Baton Rouge; LA 70803; USA
Biodiversity Institute and Department of Ecology and Evolutionary Biology; University of Kansas; Lawrence; KS 66045–7561; USA; Mention Zoologie et Biodiversité Animale; Université d’Antananarivo; BP 906; Antananarivo 101; Madagascar
Department of Integrative Biology; University of Texas at Austin; Austin; TX 78712; USA
Zoologische Staatssammlung München (ZSM-SNSB); Münchhausenstr. 21; 81247 München; Germany
The Institute for the Conservation of Tropical Environments; State University of New York at Stony Brook; Stony Brook; NY 11794; USA
Department of Ecology and Evolutionary Biology; University of Arizona; Tucson; AZ 85721; USA
Zoologisches Institut; Technische Universität Braunschweig; Mendelssohnstr. 4; 38106 Braunschweig; Germany
Amphibia anura ranomafana Maharira new species Guibemantis sioka sp. nov. taxonomy

Abstract

We describe a new species of arboreal mantellid frog of the genus Guibemantis (classified in the subgenus Guibemantis) from Madagascar. The new species, Guibemantis sioka sp. nov., is morphologically similar to G. depressiceps but differs by a high uncorrected genetic distance greater than 6% in the mitochondrial 16S rRNA gene from all other related species, and by a conspicuous dark-light marbling of the flanks, relatively large hands, and the structure of its advertisement calls from its closest relatives. Single individuals of the new species have been found at each of three high-elevation sites (1210–1650 m a.s.l.) in the Southern Central East and South East of Madagascar (Ranomafana National Park, Ivohiboro Reserve, and Andohahela National Park). If this apparent rarity was confirmed by future studies, it would stand in stark contrast to other Guibemantis which are often observed in large breeding aggregations.

 

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How to Cite

Hutter, C.R., Andriampenomanana, Z.F., Basham, E.W., Glaw, F., Masotti, M.D., Lambert, S.M. & Vences, M. (2025) A new species of mantellid frog of the genus Guibemantis from south-eastern Madagascar. Zootaxa, 5647 (3), 260–274. https://doi.org/10.11646/zootaxa.5647.3.3