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Amphisbaena absaberi (STRÜSSMAN & CARVALHO, 2001)

IUCN Red List - Amphisbaena absaberi - Data Deficient, DD
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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesPortuguese: Cobra-de-Duas-Cabeças, Cobra-Cega 
SynonymCercolophia absaberi STRÜSSMAN & CARVALHO 2001
Cercolophia absaberi — GANS 2005: 25
Amphisbaena absaberi — MOTT & VIEITES 2009 
DistributionW Brazil (Mato Grosso)

Type locality: Brazil, Mato Grosso, Ca´ceres (168109S, 578419W).  
Reproductionoviparous 
TypesHolotype: ZUEC 1532. Paratypes: ZUEC 1528, 1529, 1531, 1533, 2092. 
DiagnosisDIAGNOSIS: A medium-sized form of Cercolophia, differing from all o ther species in the genus by the following combination of characters: snout rounded; head markedlly narrower than the trunk, laterally compressed, and convex in profile. A constriction of the neck with a distinct widening of the body immediately posterior to this. Upper head scales paired, including nasals (not completely separated from the rostral), prefrontals (enormous), frontals ( elongated and posteriorly projected), and relatively small parietals; no major fusions of head scales, though the upper parts of nasarostral sutures are lost; no postmalar row; 239-242 body annuli; 4 lateral and 14-15 caudal annuli; usually 18 dorsal and 18 ventral segments to a midbody annulus; lateral sulcus markedly apparent; two precloacal pores; a slightly narrowed 5th or 6 th caudal annulus (scales on it are narrower, their number being the same or fewer than in adjacent annuli) (Strüssmann & Carvalho, 2001). 
CommentAbundance: only known from its original description (Meiri et al. 2017).

This species is one of ~20 species of Amphisbaena with two precloacal pores (Ribeiro et al. 2019). 
References
  • Gans, C. 2005. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. Bull. Am. Mus. Nat. Hist. 289: 1-130 - get paper here
  • Gonzalez R. C. et al. 2020. Lista dos Nomes Populares dos Répteis no Brasil – Primeira Versão. Herpetologia Brasileira 9 (2): 121 – 214 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Mott, Tamí; David R. Vieites 2009. Molecular phylogenetics reveals extreme morphological homoplasy in Brazilian worm lizards challenging current taxonomy. Molecular Phylogenetics and Evolution 51 (2): 190-200 - get paper here
  • RIBEIRO, SÍRIA; JERRIANE O. GOMES, HELDER LÚCIO RODRIGUES DA SILVA, CARLOS EDUARDO D. CINTRA, NELSON JORGE DA SILVA JR. 2016. A new two-pored species of Amphisbaena (Squamata, Amphisbaenidae) from the Brazilian Cerrado, with a key to the two-pored species of Amphisbaena. Zootaxa 4147 (2): 124–142 - get paper here
  • RIBEIRO, SÍRIA; VÂNIA SÁ, ALFREDO P. SANTOS-JR, ROBERTA GRABOSKI, HUSSAM ZAHER, ANDREI G. GUEDES, SHEILA P. ANDRADE, WILIAN VAZ-SILVA 2019. A new species of the Amphisbaena (Squamata, Amphisbaenidae) from the Brazilian Cerrado with a key for the two-pored species. Zootaxa 4550 (3): 301–320 - get paper here
  • Strussmann C and Carvalho MA 2001. Two new species of Cercolophia Vanzolini 1992 from the state of Mato Grosso, western Brazil (Reptilia, Amphisbaenia, Amphisbaenidae). Boll. Mus. Reg. Sci. Nat. Torino 18: 487-505
  • Strussmann, Christine & Tami Mott 2009. Sympatric amphisbaenids from Manso Dam region, Mato Grosso State, Western Brazil, with the description of a new two-pored species of Amphisbaena (Squamata, Amphisbaenidae). Studies on Neotropical Fauna and Environment, 44 (1): 37 – 46 - get paper here
 
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