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Xenopeltis intermedius ORLOV, SNETKOV, ERMAKOV, NGUYEN & ANANJEVA, 2022

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Higher TaxaXenopeltidae, Henophidia, Pythonoidea, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymXenopeltis intermedius ORLOV, SNETKOV, ERMAKOV, NGUYEN & ANANJEVA 2022: 241 
DistributionVietnam (Mang Canh)

Type locality: Kon Plông, Kon Tum Province, Mang Canh Vietnam (14°41’25’’ N 108°19’31’’ E)  
Reproduction 
TypesHolotype: ZISP 30354 (Figs. 2 – 4). Adult male, collected in May 2006 by N. L. Orlov at an elevation of 1250 m a.s.l.
Paratypes (Figs. 5 – 7). Four specimens including two adult females ZISP 30355 and 30356 and two adult males ZISP 30357, 31660 collected in Kon Plông, Kon Tum Province, Mang Canh Vietnam in May 2006 by N. L. Orlov at elevations of 1150 – 1250 m a.s.l. 
DiagnosisDiagnosis: Xenopeltis intermedius sp. nov. characterized by a combination of following characters: snout-vent up to 715 mm, tail length up to 65 mm; supraoculars — 2, preoculars 1; postoculars 1; suboculars 2; supralabilas formula 7 (3-2-2); infralabials — 7; no loreal; ventrals 174 – 185; subcaudal 16 – 22 pairs. These and other meristic and morphological differences listed in Tables 2 – 3. Skull elongated; lateral process of prefrontal short, only slightly protruding forward; parietal of less elongated shape than in X. unicolor; flat pentagonal surface in anterior part of parietal occupies significantly less than half of area of dorsal surface of parietal; from this surface a flat single ridge passes backward on midline of parietal, in observed specimens it bifurcates at the end; prominent basipterygoid processes strongly protruding from surface of basishenoid absent. Upper part of quadrate located above joint mandible wide and extends more backward than forward; lateral process on pterygoid in place of its articulation with ectopterygoid absent. (Orlov et al. 2022)


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Comment 
EtymologyThe specific epithet intermedius is derived from Latin and refers to the intermediate state of morphological characters of the snake described herein. 
References
  • Orlov, N. L., Snetkov, P. B., Ermakov, O. A., Nguyen, T. T., & Ananjeva, N. B. 2022. Integrative Taxonomy Reveals a New Cryptic Species of Xenopeltis Gray, 1831 (Ophidia: Macrostomata: Pythonoidea: Xenopeltidae) from Central Highlands, Vietnam. Russian Journal of Herpetology 29 (4): 237-249 - get paper here
 
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