Systematic Review of Colubrid Snakes of the Genus Pareas in the East Asian Islands

Ota, Hidetoshi; Lin, Jun-Tsong; Hirata, Toru; Chen, Szu-Lung

doi:10.2307/1565332

Cited by 10 publications

(10 citation statements)

References 2 publications

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“…Such deep differentiation within the Taiwanese Pareas contradicts the results of the last review by Ota et al . (), who concluded that all Taiwanese populations should be treated as a single species, P. formosensis (Van Denburgh ). It is worthy to note that two or more Pareas clades occur sympatrically at seven of the 15 sites sampled.…”

Section: Discussionmentioning

confidence: 99%

“…Morphological data for comparisons are based on examination of original collections by the authors and on information available in the literature and includes data from Pope (), Smith (), Nakamura & Uéno (), Taylor (), Rao & Yang (), Manthey & Grossmann (), Ota et al . (,b), Cox et al . (), Zhao et al .…”

Section: Methodsmentioning

confidence: 99%

“…According to the original description, A. komaii could be distinguished from A. formosensis by its keeled dorsals and position of the supralabials in relation to the oculars (Van Denburgh ; Maki ; Ota et al . ). Lue () suggested validity of these two species and noted that the keeled ( A. komaii ) and unkeeled ( A. formosensis ) species were distributed to higher and lower elevations, respectively.…”

Section: Introductionmentioning

confidence: 97%

“…vertebralis ) and 11 species of Pareas ( P. boulengeri , P. carinatus , P. chinensis , P. formosensis , P. hamptoni , P. iwasakii , P. margaritophorus , P. monticola , P. nigriceps , P. nuchalis and P. stanleyi ) (Rao & Yang ; Ota et al . ,b; Huang ; Jiang ,b; Guo & Deng ).…”

Section: Introductionmentioning

confidence: 99%

“…Having examined 27 specimens from Taiwan in addition to the holotypes of both species, Ota et al . () suggested that the relative position of supralabials and oculars is not a valid character for the subdivision of Taiwanese Pareas . Furthermore, the arrangement and degree of development of keels were found to be highly variable, so the authors concluded that P. komaii should be regarded as a junior synonym of P. formosensis .…”

Section: Introductionmentioning

confidence: 99%

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Diversity of the snail‐eating snakes Pareas (Serpentes, Pareatidae) from Taiwan

2015

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Diversity of the snail-eating snakes Pareas (Serpentes, Pareatidae) from Taiwan. -Zoologica Scripta, 00, 000-000. Pareatidae are a group of mollusc-eating snakes widely distributed in South-eastern Asia. Due to their dietary specialization, the asymmetric dentition of pareatids has recently become an interesting issue in evolutionary biology. However, phylogenetic relationships and species diversity of pareatids are still poorly studied. A total of three Pareas species, P. formosanus (Van Denburgh 1909), P. compressus (Oshima 1910) and P. komaii (Maki 1931), have been reported for Taiwan. However, only P. formosanus is currently regarded as a valid species. Using mitochondrial sequence phylogeny, nuclear c-mos haplotype network, as well as multivariate morphometrics, we re-evaluated the taxonomic status of Pareas from Taiwan, the Ryukyus and adjacent regions. These lines of evidence showed congruent results for the coexistence of three Pareas species in Taiwan, with prominent genetic and morphological differentiation and differing level of dentition asymmetry. The currently used name P. formosanus should be applied only to the snakes with red iris, comparatively short lower jaw and totally smooth dorsal scales. An examination of the type material indicated that the name P. compressus should be regarded as a junior synonym of P. formosensis sensu stricto. Pareas komaii (Oshima 1910) is confirmed as a valid taxon with yellow iris, elongated lower jaw and strongly keeled dorsals. The third clade is characterized by a yellow iris, elongated lower jaw and weakly keeled dorsals. Despite their sympatric occurrence, every examined individual showed consistent grouping from mitochondrial, nuclear and morphological markers, indicating there is no gene flow among these three clades. Here, we describe the third clade as a new specie, Pareas atayal sp. nov.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Diversity of the snail‐eating snakes Pareas (Serpentes, Pareatidae) from Taiwan

2015

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Historical Biogeography of the Terrestrial Reptiles of Japan: A Comparative Analysis of Geographic Ranges and Molecular Phylogenies

Okamoto

2016

Species Diversity of Animals in Japan

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Geographic patterns of endemism and speciation in amphibians and reptiles of the Ryukyu Archipelago, Japan, with special reference to their paleogeographical implications

1998

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This paper analyzes the phylogeographical patterns of amphibian and reptile lineages distributed in the Ryukyu islands south of the Tokara Gap on the basis of relevant distributional data and phylogenetic hypotheses hitherto published. Results indicate the numerical dominance of highly relict lineages in the central Ryukyus, and the occurences of a few more or less relict lineages in the Miyako Group as well. On the other hand, most species and subspecies endemic to the Yaeyama Group or to the Yaeyama and Miyako Groups are considered to be direct consequences of vicariance with adjacent regions. Three major hypotheses regarding the Cenozoic paleogeography of the central and the southern Ryukyus are examined in the light of the present results and a modified hypothesis is proposed accordingly.

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Systematic Review of Colubrid Snakes of the Genus Pareas in the East Asian Islands

Cited by 10 publications

References 2 publications

Diversity of the snail‐eating snakes Pareas (Serpentes, Pareatidae) from Taiwan

Diversity of the snail‐eating snakes Pareas (Serpentes, Pareatidae) from Taiwan

Historical Biogeography of the Terrestrial Reptiles of Japan: A Comparative Analysis of Geographic Ranges and Molecular Phylogenies

Geographic patterns of endemism and speciation in amphibians and reptiles of the Ryukyu Archipelago, Japan, with special reference to their paleogeographical implications

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