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Xerotyphlops etheridgei (WALLACH, 2002)

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Higher TaxaTyphlopidae (Asiatyphlopinae), Typhlopoidea, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymTyphlops etheridgei WALLACH 2002
Xerotyphlops etheridgei — HEDGES et al. 2014 
DistributionMauritania

Type locality:- Between Atar (20°31’N, 13°03’W) and Choûm (21°20’N, 12°59’W) along Route Nationale 1, a distance of ca. 85 air km through the Amsâga region, western Adrar Region, west-central Mauritania, elevation ca. 200 m. Original label reads “zwischen Atar und Shoun, Mauritanie”. Map legend:
Type locality - Type locality.
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: MHNG 1326.62 (field no. E. Kramer 11443), an adult female collected by J. Garzoni, 1967 
CommentNot listed in TRAPE & MANÉ 2006.

Diagnosis: Typhlops etheridgei can be distinguished from all other African Typhlopidae by the following combination of characters: T-III supralabial imbrication pattern (SIP) and 24 midbody scale rows. Typhlops etheridgei is separable from Rhinotyphlops by the T-III SIP (vs. T-0 or T-II), from Acutotyphlops by the 24 midbody scale rows (vs. 26-36) and rounded snout (vs. pointed snout), from Cyclotyphlops by its typical head shields (vs. circular arrangement), and from Xenotyphlops by the T-III SIP (vs. T-0) and papillaless rounded snout (vs. pointed snout with papillae). Typhlops etheridgei shares the T-III SIP with Ramphotyphlops and because it is represented solely by a female specimen, the status of the hemipenis cannot be ascertained. However, it is unlikely that T. etheridgei belongs in the genus Ramphotyphlops as the only African representative is R. braminus, the parthenogenetic species that has colonized the world. Typhlops etheridgei can be distinguished from R. braminus by the infranasal suture contacting the second supralabial (vs. preocular) and 24 midbody scale rows (vs. 20 rows). 
EtymologyThis species is dedicated to Richard Etheridge, emeritus professor at San Diego State University and iguanid systematist, who was the undergraduate mentor of Van Wallach and whose guidance and support started him on his present path in herpetology (snake viscera and systematics). 
References
  • Hedges, S.B., Marion, A.B., Lipp, K.M., Marin, J. & Vidal, N. 2014. A taxonomic framework for typhlopid snakes from the Caribbean and other regions (Reptilia, Squamata). Caribbean Herpetology 49: 1–61 - get paper here
  • Padial, J. M. 2006. COMMENTED DISTRIBUTIONAL LIST OF THE REPTILES OF MAURITANIA (WEST AFRICA). Graellsia, 62(2): 159-178
  • Wallach, Van 2002. Typhlops etheridgei, a new species of African blindsnake in the Typhlops vermicularis species group from Mauritania (Serpentes: Typhlopidae). Hamadryad 27 (1):108-122 - get paper here
 
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http://reptile-database.reptarium.cz/species?genus=Xerotyphlops&species=etheridgei

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