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Amphisbaena supernumeraria MOTT, RODRIGUES & DOS SANTOS, 2009

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Common NamesPortuguese: Cobra-de-Duas-Cabeças, Cobra-Cega 
SynonymAmphisbaena supernumeraria MOTT, RODRIGUES & DOS SANTOS 2009 
DistributionBrazil (Pernambuco)

Type locality: at Fazenda Porto Seguro (08°29’13’’S, 37°16’ 52’’W), Parque Nacional do Catimbau, municipality of Buique, state of Pernambuco, Brazil.  
TypesHolotype: MZUSP 98101 (Figs. 1, 2), an adult male collected by Miguel T. Rodrigues and Ednilza Maranhão dos Santos on 7th March, 2008. Field number MTR 15383. Paratypes: MZUSP 98098-98100; same data as for the holotype. 
DiagnosisDiagnosis: A small and slender Amphisbaena with four precloacal pores, 333–337 body annuli, 22–23 caudal annuli, discrete autotomic site on annuli 10–12, and tip of the tail pointed or keeled (Fig. 3), 14 dorsal and 17–18 ventral segments per annuli at midbody, fainted ventral sulcus. Nasal and prefrontal scales absent, fused with the rostral; frontal scales fused forming a single, large and wide heptagonal scale, the largest scale on top of head; three supra and three infralabials. The presence of more than 300 body annuli as well as the presence of frontal scales fused, forming a single large scale on top of head, and the tenth anteriormost body annuli chevron-shaped are unique characters among Amphisbaena and separate this species from all other congeners. 
EtymologyThe specific name derives from the Latin “super” (beyond), and “numeraria” (number), referring to the highest number of body annuli of this species comparing with its congeners. 
  • 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
  • Mott, T.; Rodrigues, M.T. & dos Santos, E.M. 2009. A new Amphisbaena with chevron-shaped anterior body annuli from state of Pernambuco: Brazil (Squamata: Amphisbaenidae). Zootaxa 2165: 52–58 - get paper here
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