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| Micryletta dissimulans Suwannapoom, Nguyen, Pawangkhanant, Gorin, Chomdej, Che & Poyarkov, 2020 Camouflaged Paddy Frog | อึ่งจิ๋วลายพราง || Researchgate.net/publication/343597445 |
Abstract
We report on a new species, Micryletta dissimulans sp. nov., from the lowland forests of southern Thailand, which is described based on molecular and morphological evidence. The new species is characterized by a combination of the following characters: small body size (20.3–22.4 mm in males, 24.4–26.7 mm in females); slender body habitus; head longer than wide; snout rounded in dorsal and lateral view; eye length equal to snout length; tibiotarsal articulation reaching to tympanum; dorsal surface slightly granulated to shagreened; supratympanic fold indistinct, ventrally edged in black with large black spot behind eye; outer metatarsal tubercle absent; dorsum reddish-brown with merging irregular-shaped brown blotches edged in beige, no black spots on dorsum; body flanks brown with large black spots edged in whitish mottling, two large black blotches in axillary and inguinal areas on each side; lateral sides of head black, with white patches on lips absent, whitish mottling on tympanum and axillary region; ventral surface pinkish to bluish-gray, translucent, laterally with dark-brown marbled pattern, medially immaculate; throat in males dark-gray with sparse white mottling laterally; iris copper-orange. The new species is divergent from all other congeners in 16S rRNA gene sequences (5.0%–7.4%). To date, Micryletta dissimulans sp. nov. is only known from a single locality in Saba Yoi District, Songkhla Province, Thailand, at an elevation of 120 m a.s.l., but is also expected to occur in neighboring parts of Malaysia. We suggest Micryletta dissimulans sp. nov. be considered as a Data Deficient (DD) species following the IUCN’s Red List categories (IUCN Standards and Petitions Committee, 2019).
Keywords: Thai-Malay Peninsula, Indochina, Kangar-Pattani line, Micryletta dissimulans sp. nov, Micryletta sumatrana, Micryletta steinegeri, Micryletta lineata, Biodiversity, Taxonomy, mtDNA
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| A: Distribution of the genus Micryletta (grey shading) and location of examined populations. For locality info see Supplementary Table S1. A dot in the center of icon denotes the type locality of a species; empty circle denotes locality not included in molecular analysis; star denotes the type locality of Micryletta dissimulans sp. nov. in Saba Yoi District, Songkhla Province, southern Thailand. C: Holotype of Micryletta dissimulans sp. nov. (AUP01690), adult male, in life in dorsolateral view. D: Same specimen in ventral view. Photos by N.A. Poyarkov, P. Pawangkhanant, J.H. Yang and Eki Aprilia Resdiyanti Devung. |
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| B: Phylogenetic BI tree of Micryletta reconstructed on the base of 569 bp of partial 16S rRNA sequences. Values on the branches correspond to BI PP/ML BS, respectively; black and white circles correspond to well-supported and moderately supported nodes, respectively. Photos by N.A. Poyarkov, P. Pawangkhanant, J.H. Yang and Eki Aprilia Resdiyanti Devung. |
Micryletta dissimulans sp. nov.
Diagnosis: The new species is assigned to the genus Micryletta Dubois, 1987 based on the following morphological attributes: body size small; vomerine teeth absent; tympanum small, rounded, externally visible; subarticular tubercles on fingers and toes very prominent; three well-developed metacarpal tubercles; distinct supernumerary palmar and metatarsal tubercles posterior to base of digits; first finger not reduced; and webbing on fingers and toes absent (Alhadi et al., 2019; Das et al., 2019; Dubois, 1987; ...
Etymology: The specific epithet “dissimulans” is a Latin adjective in the nominative case, feminine gender, derived from the Latin verb “dissimulo” meaning “to hide” or “to conceal”, and is given in reference to the iconic “Frog Skin” camouflage pattern, resembling the characteristic mottled and disruptive dorsal pattern of the new species. The name is also given in reference to the new species being concealed for a long time until its recent discovery. We recommend “Camouflaged Paddy Frog” as the common English name and “Eung Jiew Lay Prang” (อึ่งจิ๋วลายพราง) as the common Thai name of the new species.
Chatmongkon Suwannapoom, Tan Van Nguyen, Parinya Pawangkhanant, Vladislav Gorin, Siriwadee Chomdej, Jing Che, Nikolay Poyarkov. 2020. A New Species of Micryletta (Amphibia: Microhylidae) from southern Thailand. Zoological Research. DOI: 10.24272/j.issn.2095-8137.2020.139
zoores.ac.cn/article/doi/10.24272/j.issn.2095-8137.2020.139 facebook.com/NickPoyarkov/posts/10220703091801530 Researchgate.net/publication/343597445_A_new_species_of_Micryletta_from_southern_Thailand
