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Issue: Vol. 5570 No. 1: 16 Jan. 2025
Type: Article
Published: 2025-01-16
DOI: 10.11646/zootaxa.5570.1.2
Page range: 57-80
Abstract views: 128
PDF downloaded: 5

A new fanged frog of the genus Limnonectes Fitzinger, 1843 (Anura: Dicroglossidae) from Langbian Plateau, southern Vietnam

Key Laboratory of Genetic Evolution and Animal Models; and Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming 650223; China; Kunming College of Life Science; University of Chinese Academy of Sciences; Kunming 650204; China; Institute of Tropical Biology; Vietnam Academy of Science and Technology; 85 Tran Quoc Toan St.; Dist. 3; Ho Chi Minh City; Vietnam
Asian Turtle Program of Indo-Myanmar Conservation; No. 1806; C14 Bac Ha Building; To Huu St.; Nam Tu Liem Dist.; Hanoi; Vietnam
Centre for Biodiversity and Conservation Biology; Royal Ontario Museum; Toronto; Ontario M5S 2C6; Canada
Asian Turtle Program of Indo-Myanmar Conservation; No. 1806; C14 Bac Ha Building; To Huu St.; Nam Tu Liem Dist.; Hanoi; Vietnam
Institute of Tropical Biology; Vietnam Academy of Science and Technology; 85 Tran Quoc Toan St.; Dist. 3; Ho Chi Minh City; Vietnam; Graduate University of Science and Technology; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Road; Hanoi; Vietnam
Key Laboratory of Genetic Evolution and Animal Models; and Yunnan Key Laboratory of Biodiversity and Ecological Conservation of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming 650223; China; Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw 05282; Myanmar
Amphibia Limnonectes splendissimus sp. nov. Limnonectes poilani Lam Dong Province phylogeny taxonomy

Abstract

We describe a new frog of the genus Limnonectes from the Langbian Plateau in southern Vietnam based on morphological and molecular analyses. Limnonectes splendissimus sp. nov. shares morphological characteristics similar to L. poilani from central Vietnam yet is distinguishable from its congeners based on the following combination of diagnostic characters: large body-size (SVL 104.1–107.0 mm in three adult males, 87.2–97.7 mm in two adult females); head length longer than wide (HW/HL = 0.91±0.01 in adult males, 0.87±0.08 in adult females); adult males having an enlarged head height and a nuptial pad on finger I; eye diameter about three-fifths of tympanum-eye distance in adult males (ED/TED = 0.62±0.13) and longer than tympanum-eye distance in adult females (ED/TED = 1.40±0.02); distinct tympanum; presence of vomerine teeth; a tendency for a more prominent odontoid height (OH 8.0 ± 0.6 mm in adult males, 4.5±0.9 mm in adult females); throat surface in juveniles very distinct with black and white pattern that covers both the throat and anterior half of venter, and latter half of venter yellow. Phylogenetic analyses place the new species as the sister species of L. poilani. The new species differs from its congeners by an uncorrected p-distances in 16S sequences ranging from 8.2% (vs. L. poilani) to 14.6% (vs. L. dabanus).

 

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