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Amphisbaena uroxena MOTT, RODRIGUES, DE FREITAS & SILVA, 2008

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Squamata 
Subspecies 
Common Names 
SynonymAmphisbaena uroxena MOTT, RODRIGUES, DE FREITAS & SILVA 2008 
DistributionBrazil (Bahia), elevation 1100 m.

Type locality: Fazenda Caraibas (13°09’49’’S, 41°24’19’’W), district of Cascavel, municipality of Mucugê, Serra do Espinhaço (Chapada Diamantina), state of Bahia, Brazil. 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: MZUSP 95987, an immature female, collected by Marco Antonio de Freitas and Thais Figueiredo Santos Silva on 8 December 2005. 
CommentAmphisbaena uroxena is a small amphisbaenian without precloacal pores, 210–213 body annuli, 12–13 tail annuli without evident autotomic site, and 14 dorsal and 14–15 ventral segments per annuli at midbody. The striking difference of this form is the presence of small tubercles on the dorsal region of its tail. This feature is unique among its congeners, although Rhineura floridana, a North American amphisbaenian, has tubercles on its tail.

Diagnosis.—A small Amphisbaena with a short, blunt, nonautotomic tail covered with small conic tubercules at their diagonal and dorsally oriented tip. This morphological feature is unique among South American amphisbaenians. No visible precloacal pores, paired nasals, prefrontals, frontals and parietals, 210– 213 body and 12–13 caudal annuli, 14 dorsal and 14–15 ventral segments per annuli at midbody, 3 supralabials, 3 infralabials. Head not distinct from the trunk, mouth ventral. Prefrontals are the largest head scales. 
EtymologyEtymology.—The uroxena from the Greek “uros” meaning tail and “xenos” meaning strange, different, is a reference to the strikingly different tail of this species.  
References
  • Freitas, M.A.; D. Veríssimo; V. Uhlig. 2012. Squamate Reptiles of the central Chapada Diamantina, with a focus on the municipality of Mucugê, state of Bahia, Brazil. Check List 8(1):16-22 - get paper here
  • Mott, T.; Rodrigues, M.T.; de Freitas, M.A. & Silva, T.F.S. 2008. New Species of Amphisbaena with a Nonautotomic and Dorsally Tuberculate Blunt Tail From State of Bahia, Brazil (Squamata, Amphisbaenidae). Journal of Herpetology 42 (1): 172-175 - get paper here
 
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As link to this species use URL address:

http://reptile-database.reptarium.cz/species?genus=Amphisbaena&species=uroxena

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