Amphisbaena uroxena MOTT, RODRIGUES, DE FREITAS & SILVA, 2008
Can you confirm these amateur observations of Amphisbaena uroxena?
|Higher Taxa||Amphisbaenidae, Amphisbaenia, Lacertoidea, Squamata|
|Synonym||Amphisbaena uroxena MOTT, RODRIGUES, DE FREITAS & SILVA 2008|
|Distribution||Brazil (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.
|Types||Holotype: MZUSP 95987, an immature female, collected by Marco Antonio de Freitas and Thais Figueiredo Santos Silva on 8 December 2005.|
|Diagnosis||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.|
|Comment||Amphisbaena 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.|
Abundance: only known from the type locality (Meiri et al. 2017).
|Etymology||Etymology.—The uroxena from the Greek “uros” meaning tail and “xenos” meaning strange, different, is a reference to the strikingly different tail of this species.|
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