Liopeltis pallidonuchalis POYARKOV, NGUYEN & VOGEL, 2019
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Liopeltis pallidonuchalis
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| Higher Taxa | Colubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Pale-necked Ringneck Vietnamese: Rắn đai gáy nhạt màu Russian: Blednyi Gladkiy Kamyshovyi Uzh G: Blasse Halsbandnatter |
| Synonym | Liopeltis pallidonuchalis POYARKOV, NGUYEN & VOGEL 2019 Liopeltis frenatus – SMITH 1943: 183 (partim) Liopeltis frenatus – ZIEGLER et al. 2007: 10–11, Figure 11 (?) Liopeltis frenatus – ZIEGLER & HOANG 2009: 115 |
| Distribution | C Vietnam (Annamite [Truong Son] Mountains) Type locality: forest trail in the evergreen montane tropical forest in Kon Chu Rang N.R. (14.5034° N, 108.5383° E, at elevation of 1010 m asl), Gia Lai Province, central Vietnam (Figures 2–4 in Poyarkov et al. 2019) |
| Reproduction | |
| Types | Holotype: ZMMU R-15682, adult male (hemipenis everted), collected by Nikolay A. Poyarkov on 29 May 2016. Paratypes: DTU 307 (adult female) roadkill specimen from the road in the evergreen montane tropical forest in Bach Ma N.P. (16.2035° N, 107.8540° E, at an elevation of 950 m asl), Thua Thien–Hue Province, central Vietnam (Figure 5), collected by The Anh Nguyen and Phuong Nhu Hoang on 18 June 2018; ZFMK 83105 (adult female) from Bach Ma N.P. (no elevation data available), Thua Thien–Hue Province, central Vietnam, col- lected by Quang Xuan Hoang and students before August 1998. |
| Diagnosis | Diagnosis: The new species can be separated from its congeners by the following combination of morphological characters: (1) one single (or missing) loreal; (2) one single nasal shield; (3) dorsal scales in 15-15-15 rows, all smooth; (4) 1 preocular, 2 postoculars and 1 + 2 temporals; (5) 7 supralabials, of which 3d and 4th in contact with the eye; (6) 8 infralabials; (7) nasal contacting internasal; (8) prefrontal touching or separated from supralabials; (9) ventral scales 126–138; (10) subcaudal scales 67–73, paired; (11) relative tail length about 0.274–0.301; (12) an uniform bronze body coloura- tion; (13) a thin postocular stripe extending from eye to end of the neck becoming indistinct posteriorly. The new species can be distinguished from all other congeners by its low subcaudal scales count, and by its characteristic colouration. Poyarkov et al. 2019 provide more detailed comparisons with other species of the genus Liopeltis appear below. Additional details (6082 characters) are available for collaborators and contributors. Please contact us for details. |
| Comment | Known from 4 specimens. Habitat: montane evergreen tropical forest |
| Etymology | The specific name ‘pallidonuchalis’ is a Latinised adjective in the nominative singular (feminine gender), derived from Latin ‘pallidus’ for ‘pale’ and Medieval Latin ‘nucha’, derived from Arabic ‘nuka’ for ‘nape’, ‘dorsal surface of neck’, referring to the pale postocular marking of the new species disappearing in nuchal area. |
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