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Issue: Vol. 5353 No. 5: 12 Oct. 2023
Type: Article
Published: 2023-10-12
DOI: 10.11646/zootaxa.5353.5.4
Page range: 455-467
Abstract views: 583
PDF downloaded: 44

A new high elevation species of Oreophryne Boettger (Anura: Microhylidae) from Sulawesi, Indonesia

Graduate School of Animal Biosciences; IPB University; Bogor 16680; West Java; Indonesia; Laboratory of Herpetology; Research Center for Biosystematics and Evolution; National Research and Innovation Agency (BRIN); Widyasatwaloka Building; Jl. Raya Jakarta Bogor Km. 46 Cibinong 16911; West Java; Indonesia
Laboratory of Herpetology; Research Center for Biosystematics and Evolution; National Research and Innovation Agency (BRIN); Widyasatwaloka Building; Jl. Raya Jakarta Bogor Km. 46 Cibinong 16911; West Java; Indonesia
Laboratory of Herpetology; Research Center for Biosystematics and Evolution; National Research and Innovation Agency (BRIN); Widyasatwaloka Building; Jl. Raya Jakarta Bogor Km. 46 Cibinong 16911; West Java; Indonesia
Museum of Wildlife and Fish Biology; Department of Wildlife; Fish and Conservation Biology; University of California; Davis; Cali- fornia 95616; USA
Museum of Wildlife and Fish Biology; Department of Wildlife; Fish and Conservation Biology; University of California; Davis; Cali- fornia 95616; USA
Department of Biology; Faculty of Mathematics and Natural Sciences; IPB University; Bogor 16680; West Java; Indonesia
Department of Biology; Faculty of Mathematics and Natural Sciences; IPB University; Bogor 16680; West Java; Indonesia
Laboratory of Herpetology; Research Center for Biosystematics and Evolution; National Research and Innovation Agency (BRIN); Widyasatwaloka Building; Jl. Raya Jakarta Bogor Km. 46 Cibinong 16911; West Java; Indonesia
Amphibia endemic frog Mount Mekongga morphology phylogenetic

Abstract

We examined the morphology of 50 specimens of Sulawesian Oreophryne and recognize a distinct, undescribed species. Based on morphological data and supported with phylogenetic analysis of the 16S rRNA gene, it is herein described and named as Oreophryne riyantoi sp. nov. The new species is diagnosed by having a combination of rounded snout in dorsal and lateral view, indistinct tympanum, narrow interorbital distance, small hands, small terminal discs on fingers and toes, toes without webbing, short legs, and dorsal surfaces of head, body and limbs irregularly tuberculated in life. It was found in leaf litter on the forest floor in extremely wet primary montane forest on Mount Mekongga at an altitude of 2528 m asl. The forest-dwelling habit of this terrestrial frog is unusual because other terrestrial Oreophryne occuring at high-altitude live in open grassy or fern dominated meadows. Four endemic species of Oreophryne are now known from Sulawesi. However, herpetological research activities, including high elevation surveys and additional taxonomic work, are necessary to achieve a comprehensive understanding of Oreophryne diversity and phylogeography in Sulawesi.

 

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