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Gloydius swild SHI & MALHOTRA, 2021

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Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Glacier pit viper
Chinese: 冰川蝮 (Bīng Chuān Fù) 
SynonymGloydius swild SHI & MALHOTRA in SHI et al. 2021 
DistributionChina (Heishui, Aba, Sichuan)

Type locality: Heishui, Aba, Sichuan  
Reproductionovovivparous. One adult female (Holotype) was collected when pregnant, gave birth to eight neonates (including a couple of conjoined twins) on September 20th, 2017 in captivity. The weight of the normal neonates ranged between 3.00–3.45 g (3.01, 3.22, 3.22, 3.23, 3.28, 3.45, average = 3.235, n = 6). The weight of the conjoined twins was 2.86 g (weighed after the first shedding). (Shi et al. 2021). 
TypesHolotype: IVPP OV2725 (G2, Figs 1, 3), adult female, collected from Heishui, Aba, Sichuan (32.23°N, 102.80°E, 2940 m), on 23 July, 2017, by the senior author; paratype, IVPP OV 2726, adult male, the same locality as the holotype, collected by Jia-Wei Wu (chief executive officer of SWILD Group). 
DiagnosisDiagnosis: Gloydius swild sp. nov. differs from other congeneric species in the following characteristics: i) the narrower postorbital stripe, ii) a pair of round spots on the parietal scales; iii) the absence of the black spots on the lateral body; iv) 21 rows of mid-body dorsal scales; v) a pair of arched stripes on the occiput; vi) 168–170 ventral scales, and vii) 43–46 subcaudal scales. (Shi et al. 2021).


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CommentSimilar species: Gloydius strauchi, Gloydius angusticeps

Distribution: for a map of localities see Shi et al. 2021: 102 (Fig. 6) 
References
  • Shi J-S, Liu J-C, Giri R, Owens JB, Santra V, Kuttalam S, Selvan M, Guo K-J, Malhotra A 2021. Molecular phylogenetic analysis of the genus Gloydius (Squamata, Viperidae, Crotalinae), with description of two new alpine species from Qinghai-Tibet Plateau, China. ZooKeys 1061: 87-108 - get paper here
 
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