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Ptyas bachmaensis NGUYEN, VO, ORLOV, PHAN, LE, NGUYEN, TRAN, MURPHY & CHE, 2024

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Bach Ma green rat snake
Vietnamese: Rắn ráo xanh Bạch Mã 
SynonymPtyas bachmaensis NGUYEN, VO, ORLOV, PHAN, LE, NGUYEN, TRAN, MURPHY & CHE 2024: 3 
DistributionVietnam (Thua Thien-Hue, Kon Tum)

Type locality: Bach Ma Mountain, Bach Ma National Park, Phu Loc District, Thua Thien-Hue Province, Vietnam; coordinates N16°11′40′′, E107°51′40′′; elevation 1330 m above sea level (a.s.l.)  
Reproduction 
TypesHolotype: ITBCZ 8628, adult male, collected by Cao Van Nguyen, Ba Dinh Vo, Khanh Duy Phan, and Sang Ngoc Nguyen, on 26 September 2023 (Figures 2, 3). Paratypes: ITBCZ 8507, gravid female, also collected from Bach Ma Mountain, Bach Ma National Park, Phu Loc District, Thua Thien-Hue Province, Vietnam, coordinates N16°11′36′′, E107°51′11′′, elevation 1260 m a.s.l. by Ba Dinh Vo, on 4 October 2023; ZISP 32661, juvenile specimen, collected from Kon Du Village, Mang Canh Commune, Kon Plong District, Kon Tum Province, Vietnam, coordinates N14°41′25′′, E108° 19′31′′, elevation 1210 m a.s.l. in October 2018 (Figure 4). 
DiagnosisDiagnosis: Ptyas bachmaensis sp. nov. is distinguished from all congeners by the unique combination of the following morphological characters: large-sized snake (largest TL 2 401 mm in adult male); body scale rows in even numbers, 16 rows at neck and midbody, 14 rows before vent; two medial vertebral scale rows throughout; two and two or four medial
scale rows keeled on middle and posterior parts of body, respectively; ventrals 194–199; subcaudals 132–138; supralabials 8, fourth and fifth entering orbit; maxillary teeth 28 or 29; hemipenis spinose and unforked, reaching 12th subcaudal; cloacal plate divided; lateral side of tail black, without a bright stripe. (Nguyen et al. 2024)


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References
  • Nguyen, S. N., Vo, B. D., Orlov, N. L., Phan, K. D., Van Le, M., Nguyen, L. T., ... & Che, J. 2024. A new species of green rat snake (Squamata: Colubridae: Ptyas) from Vietnam. Zoological Research: Diversity and Conservation - get paper here
 
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