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Xenocalamus sabiensis BROADLEY, 1971

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Higher TaxaAtractaspididae (Aparallactinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Sabi Quill-snouted Snake 
SynonymXenocalamus sabiensis BROADLEY 1971
Xenocalamus sabiensis — WELCH 1994: 125
Xenocalamus sabiensis — LIVIGNI 2013: 287
Xenocalamus sabiensis — WALLACH et al. 2014: 796
Amblyodipsas sabiensis — FIGUEROA et al. 2016 (by implication) 
DistributionSE Zimbabwe, adjacent Mozambique, Republic of South Africa

Type locality: Birchenough Bridge, Sabi River, Rhodesia, at an altitude of 450 metres.  
TypesHolotype: NMZB, previously UM 1448, an adult male 
DiagnosisDiagnosis. This species differs from all other forms in the genus in the following characters: (1) usually six lower labials; (2) frontal bones completely fused; (3) tail without any taper, six rows of supracaudals persisting to the tail tip.

Coloration. A black dorsal band normally covers 11 to 12 dorsal scale rows (only 7 in UM 13391 and 9 in UM 17867), this is bordered by a chrome yellow lateral band one or two scale rows wide; the ventrum is white, sometimes with a few brown blotches. TM 29115 has the dorsum entirely black and the ventrum uniform brown. 
  • Bates, M.F.; Branch, W.R., Bauer, A.M.; Burger, M., Marais, J.; Alexander, G.J. & de Villliers, M.S. (eds.) 2014. Atlas and Red List of the Reptiles of South Africa, Lesotho, and Swaziland. Suricata 1. South African National Biodiversity Institute, Pretoria, 512 pp.
  • Broadley, D. & Blaylock 2013. The Snakes of Zimbabwe and Botswana. Chimaira, Frankfurt, 387 pp. [book review in Sauria 35 (2): 59 and Copeia 2014: 388] - get paper here
  • Broadley, D. G. 1971. A revision of the African snake genera Amblyodipsas and Xenocalamus. Occ. Pap. natl. Mus. Rhod. B4 (33): 629-697
  • Figueroa A, McKelvy AD, Grismer LL, Bell CD, Lailvaux SP 2016. A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus. PLoS One 11 (9): e0161070.doi:10.1371/journal.pone.0161070 - get paper here
  • LiVigni, F. (ed.) 2013. A Life for Reptiles and Amphibians, Volume 1. Chimaira, Frankfurt, 495 pp. - 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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