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Parastenophis betsileanus (GÜNTHER, 1880)

IUCN Red List - Parastenophis betsileanus - Least Concern, LC

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Higher TaxaPseudoxyrhophiidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymDipsas betsileana GÜNTHER 1880: 238
Lycodryas betsileanus — CADLE (WWW 2003)
Stenophis betsileanus — GLAW & VENCES 1994: 342
Stenophis (Parastenophis) betsileanus — DOMERGUE 1995
Lycodryas betsileanus — MATTISON 1995: 125
Parastenophis betsileanus — NAGY et al. 2010
Stenophis betsileanus — WALLACH et al. 2014: 675 

Type locality: Betsileo.  
TypesHolotype: BMNH (presumed, status unclear fide P. Campbell, pers. comm., March 2019). 
DiagnosisDefinition and description of Parastenophis: Typically 7 (range: 6–8) upper labials (usually 3rd and 4th touching eye); 8–11 lower labials; usually no or one loreal scale; typically 23 rows of dorsal scales at mid-body (21 in ZFMK 63175); 19 rows of dorsal scales at the last ventral (17 in ZFMK 63175); 209–236 ventral scales; anal plate divided; 77–105 subcaudals (always divided); pupil is a broad vertical ellipse when contracted; hemipenis massif, biapical. Further characters are given in Table 2 in NAGY et al. 2010.

Description: black and white stripes. 
CommentType species: Dipsas betsileana GÜNTHER 1880 is the type species of the genus Parastenophis Domergue, 1995.

Habitat: partly arboreal (Harrington et al. 2018). 
Etymologynamed after the type locality. 
  • Andreone F., Randrianirina J., Jenkins P.D. & Aprea G. 2000. Species diversity of Amphibia, Reptilia and Lipotyphla (Mammalia) at Ambolokopatrika, a rainforest between the Anjanaharibe-Sud and Marojejy massifs, NE Madagascar. Biodiversity and Conservation 9: 1587–1622
  • Domergue, C. A. 1995. Serpents de Madagascar: Note liminaire sur des espèces nouvelles du genre Stenophis Boulenger, 1896 (Colubridae: Boiginae). Archives de l'Institut Pasteur de Madagascar 61 (2): 121-122 [1994]
  • Glaw ,F. & Vences, M. 1994. A Fieldguide to the Amphibians and Reptiles of Madagascar. Vences & Glaw Verlag, Köln (ISBN 3-929449-01-3)
  • Günther,C.A.L.G. 1880. Description of new species of reptiles from eastern Africa. Ann. Mag. nat. Hist. (5) 6 (33): 234-238 - get paper here
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Mattison, Chris 1995. The Encyclopedia of Snakes. New York: Facts on File, 256 pp.
  • Nagy, Z. T., Glaw, F. & Vences, M. 2010. Systematics of the snake genera Stenophis and Lycodryas from Madagascar and the Comoros. Zoologica Scripta 39, 426–435 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
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