A new species of snail-eating snakes of the genus Pareas Wagler, 1830 (Reptilia: Serpentes) from eastern Himalayas, India

Bhosale, Harshal; Phansalkar, Pushkar U.; Sawant, Mandar; Gowande, Gaurang G.; Patel, Harshil; Mirza, Zeeshan A.

doi:10.5852/ejt.2020.729.1191

Cited by 837 publications

(23 citation statements)

References 18 publications

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“…For comparison, data for other species were taken from related publications (Boulenger 1900(Boulenger , 1905Pope 1935;Zhao et al 1998;Grossmann and Tillack 2003;Guo and Deng 2009;Guo et al 2011;Loredo et al 2013;Vogel 2015;You et al 2015;Hauser 2017;Bhosale et al 2020;Ding et al 2020;Vogel et al 2020;Wang et al 2020). In addition, we examined the topotypic specimens of Pareas niger preserved in KIZ.…”

Section: Dsmentioning

confidence: 99%

A new species of the genus Pareas (Squamata, Pareidae) from Yunnan, China

Liu¹,

Rao²

2021

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A new species of Pareas is described from Yunnan Province, China, based on morphological comparisons and molecular data. Genetically, the new species is most closely related to the recently-described Pareas geminatus, for which we present new topotypic findings. The genetic divergence (uncorrected p-distance) of the cytb gene between the new species and congeners ranged from 6.14% to 24.68%. Morphologically, the new species can be distinguished from P. geminatus and all other congeners. Our work brings the total number of species within the genus Pareas to 22.

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Section: Dsmentioning

confidence: 99%

A new species of the genus Pareas (Squamata, Pareidae) from Yunnan, China

Liu¹,

Rao²

2021

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“…Several recent taxonomic studies have demonstrated that the species diversity of Pareinae is still underestimated ( e.g ., Vogel, 2015 ; Hauser, 2017 ; Quah et al, 2019 , 2020 ; Quah, Lim & Grismer, 2021 ; Le et al, 2021 ). The high degree of morphological similarity among closely related taxa of Pareinae often makes species delineation in slug snakes quite challenging ( Guo & Deng, 2009 ; Vogel, 2015 ; Yang et al, 2021 ), suggesting that the molecular data represent an effective tool to help untangle taxonomic controversies when morphological analyses yield inconsistent results ( You, Poyarkov & Lin, 2015 ; Loredo et al, 2013 ; Vogel et al, 2020 , 2021 ; Bhosale et al, 2020 ; Wang et al, 2020 ; Ding et al, 2020 ; Liu & Rao, 2021 ; Yang et al, 2021 ). Application of the integrative taxonomic approach combining evidence from morphological and molecular data resulted in the discovery of several previously unnoticed taxa and allowed to revise several species complexes, including the Pareas hamptoni complex ( You, Poyarkov & Lin, 2015 ; Bhosale et al, 2020 ; Ding et al, 2020 ; Liu & Rao, 2021 ; Yang et al, 2021 ), the P. margaritophorus complex ( Vogel et al, 2020 ; Suntrarachun et al, 2020 ), and the P. monticola complex ( Vogel et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

An integrative taxonomic revision of slug-eating snakes (Squamata: Pareidae: Pareineae) reveals unprecedented diversity in Indochina

Poyarkov

Nguyen

Pawangkhanant

et al. 2022

PeerJ

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Slug-eating snakes of the subfamily Pareinae are an insufficiently studied group of snakes specialized in feeding on terrestrial mollusks. Currently Pareinae encompass three genera with 34 species distributed across the Oriental biogeographic region. Despite the recent significant progress in understanding of Pareinae diversity, the subfamily remains taxonomically challenging. Here we present an updated phylogeny of the subfamily with a comprehensive taxon sampling including 30 currently recognized Pareinae species and several previously unknown candidate species and lineages. Phylogenetic analyses of mtDNA and nuDNA data supported the monophyly of the three genera Asthenodipsas, Aplopeltura, and Pareas. Within both Asthenodipsas and Pareas our analyses recovered deep differentiation with each genus being represented by two morphologically diagnosable clades, which we treat as subgenera. We further apply an integrative taxonomic approach, including analyses of molecular and morphological data, along with examination of available type materials, to address the longstanding taxonomic questions of the subgenus Pareas, and reveal the high level of hidden diversity of these snakes in Indochina. We restrict the distribution of P. carinatus to southern Southeast Asia, and recognize two subspecies within it, including one new subspecies proposed for the populations from Thailand and Myanmar. We further revalidate P. berdmorei, synonymize P. menglaensis with P. berdmorei, and recognize three subspecies within this taxon, including the new subspecies erected for the populations from Laos and Vietnam. Furthermore, we describe two new species of Pareas from Vietnam: one belonging to the P. carinatus group from southern Vietnam, and a new member of the P. nuchalis group from the central Vietnam. We provide new data on P. temporalis, and report on a significant range extension for P. nuchalis. Our phylogeny, along with molecular clock and ancestral area analyses, reveal a complex diversification pattern of Pareinae involving a high degree of sympatry of widespread and endemic species. Our analyses support the “upstream” colonization hypothesis and, thus, the Pareinae appears to have originated in Sundaland during the middle Eocene and then colonized mainland Asia in early Oligocene. Sundaland and Eastern Indochina appear to have played the key roles as the centers of Pareinae diversification. Our results reveal that both vicariance and dispersal are responsible for current distribution patterns of Pareinae, with tectonic movements, orogeny and paleoclimatic shifts being the probable drivers of diversification. Our study brings the total number of Pareidae species to 41 and further highlights the importance of comprehensive taxonomic revisions not only for the better understanding of biodiversity and its evolution, but also for the elaboration of adequate conservation actions.

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“…In the course of herpetological exploration, we surveyed several localities across the Indian state of Arunachal Pradesh (Bhosale et al 2019;Bhosale et al 2020;Mirza et al 2020). During the expedition, we collected specimens of Cyrtodactylus from three localities, which were later identified to belong to a single species based on morphological as well as molecular data.…”

Section: Introductionmentioning

confidence: 99%

A new species of geckos of the genus Cyrtodactylus Gray, 1827 from Arunachal Pradesh, India

Mirza¹,

Bhosale²,

Ansari³

et al. 2021

EvolSyst

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We here describe a new species of bent-toed geckos from the northeastern Indian state of Arunachal Pradesh, which is widespread across the Dafla and Mishmi hills, occurring at elevations ranging from 179 m to 1400 m. The new species is recovered as sister to the Cyrtodactylus khasiensis clade based on a molecular phylogeny inferred from mitochondrial NADH-ubiquinone oxidoreductase, subunit 2 gene. Intraspecific uncorrected pairwise sequence divergence (p-distance) for the new species was found to be between 0 and 5%, whereas the interspecific divergence from the closely-related congeners was between 19 and 30%. The new species can be differentiated from members of the C. khasiensis clade using a suite of morphological characters: moderate body size (SVL 64.9–81.7); 8–11 supralabials; 8–10 infralabials; 24–26 bluntly conical, feebly keeled dorsal tubercles; 50–60 paravertebral tubercles; ~38 ventral scales between ventrolateral folds; no precloacal groves; 6–10 precloacofemoral pores in a continuous series; 10–16 distal subdigital lamellae on IV of pes; subcaudal scalation of original tail without enlarged plates. This is the fourth reptile species described from Arunachal Pradesh from the expedition led by the team, and this further highlights the need for further herpetological investigations into the region.

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A new species of snail-eating snakes of the genus Pareas Wagler, 1830 (Reptilia: Serpentes) from eastern Himalayas, India

Cited by 837 publications

References 18 publications

A new species of the genus Pareas (Squamata, Pareidae) from Yunnan, China

A new species of the genus Pareas (Squamata, Pareidae) from Yunnan, China

An integrative taxonomic revision of slug-eating snakes (Squamata: Pareidae: Pareineae) reveals unprecedented diversity in Indochina

A new species of geckos of the genus Cyrtodactylus Gray, 1827 from Arunachal Pradesh, India

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