Description of a new species of Southeast Asian reed snake from northern Laos (Squamata: Colubridae: Genus <i>Calamaria</i> F. Boie, 1827) with a revised diagnosis of <i>Calamaria yunnanensis</i> Chernov, 1962

Lee, Justin L.

doi:10.1080/00222933.2021.1909165

Cited by 1,001 publications

(2 citation statements)

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“…EyeD eye horizontal diameter; Eye-Mouth D eyemouth distance, measured from the anterior point of the eye to the mouth; HL head length (from tip of snout to posterior margin of the mandible); HW maximum head width; SVL snout-vent length (from tip of snout to posterior margin of cloacal plate); TaL tail length (from posterior margin of cloacal plate to tip of tail); TL total length (from tip of snout to tip of tail); TaL/TL ratio tail length/ total length. Comparative morphological data from other species of Calamaria found in mainland Southeast Asia and China were obtained from examined specimens (Appendix 1) and literature (Smith 1943;Inger and Marx 1965;Darevsky and Orlov 1992;Zhao et al 1998;Ziegler and Quyet 2005;Yang and Rao 2008;Ziegler et al 2008;Orlov 2009;Nguyen et al 2010;Orlov et al 2010;Yang and Zheng 2018;Poyarkov et al 2019;Ziegler et al 2019;Lee 2021).…”

Section: Morphometricsmentioning

confidence: 99%

“…strigiventris Poyarkov, Nguyen, Orlov & Vogel, 2019;C. thanhi Ziegler & Quyet, 2005;and C. yunnanensis Chernov, 1962 (Smith 1943;Inger and Marx 1965;Darevsky and Orlov 1992;Zhao et al 1998;Ziegler and Quyet 2005;Yang and Rao 2008;Ziegler et al 2008;Nguyen et al 2009;Orlov 2009;Nguyen et al 2010;Orlov et al 2010;Yang and Zheng 2018;Poyarkov et al 2019;Quah et al 2019;Ziegler et al 2019;Lee 2021).…”

Section: Introductionmentioning

confidence: 99%

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A new species of Calamaria (Squamata: Colubridae) from Guangdong Province, southern China

Yeung¹,

Lau²,

Yang³

2022

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A new species of the genus Calamaria Boie, 1827, Calamaria arcanasp. nov., is described based on a single male specimen collected from Mt. Dadongshan, Guangdong, southern China. The new species can be distinguished from all known congeners by the significant genetic divergence in the mitochondrial cytochrome-b gene fragment (p-distance ≥ 13.9%), and morphologically by the combination of the following characters: (1) ten modified maxillary teeth; (2) four supralabials, second and third supralabials entering orbit; (3) preocular present; (4) mental not touching anterior chin shields; (5) six scales and shields surrounding the paraparietal; (6) 170 ventral scales; (7) 22 paired subcaudals; (8) tail not gradually tapering, abruptly tapering at the tip; (9) dorsal scales reduced to five rows above last subcaudal at tail; (10) dorsum of body and tail brownish; (11) dark collar on nuchal region absent; (12) two outermost dorsal scale rows light yellow with upper margins partly dark pigmented; (13) ventral scales immaculate, without dark outermost corners and pigmentation anteriorly; and (14) absence of distinct dark longitudinal line or scattered spots on the underside of tail. Calamaria arcanasp. nov., represents the fifth species of the genus recorded in China. Following the IUCN Red List Categories and Criteria, we propose the new species to be listed as Data Deficient.

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