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Amphisbaena roberti GANS, 1964

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Squamata (lizards)
Common NamesPortuguese: Cobra-de-Duas-Cabeças, Cobra-Cega 
SynonymAmphisbaena roberti GANS 1964
Cercolophia roberti — GANS 2005: 26
Cercolophia roberti — ANDRADE et al. 2006
Amphisbaena roberti — MOTT & VIEITES 2009
Amphisbaena roberti — CACCIALI et al. 2016 
DistributionBrazil (E Sao Paulo, SW Minas Gerais, S Goias, Paraná [HR 27: 216]), Paraguay (fide Paul Smith, pers. comm., 27 Apr 2014)

Type locality: ‘‘Ypiranga, São Paulo, S.P., Brazil’’.  
TypesHolotype: MZUSP ? (DZ) 1946. Paratypes: DZ 755, 1947; ZMH 1879A; DZ 1257, 1937 (São Paulo, São Paulo, Brazil). 
CommentType species: Amphisbaena roberti is the type species of the genus Cercolophia VANZOLINI 1992.

Morphology: This species is one of ~20 species of Amphisbaena with two precloacal pores (Ribeiro et al. 2019). 
EtymologyNamed after Robert Friedrich Wilhelm Mertens (1894-1975), a German zoologist and herpetologist who was born in St. Petersburg. 
  • Andrade, Denis V.; Nascimento, Luciana B.; Abe, Augusto S. 2006. Habits hidden underground: a review on the reproduction of the Amphisbaenia with notes on four neotropical species. Amphibia-Reptilia 27 (2): 207-217 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Cacciali, Pier; Norman J. Scott, Aida Luz Aquino Ortíz, Lee A. Fitzgerald, and Paul Smith 2016. The Reptiles of Paraguay: Literature, Distribution, and an Annotated Taxonomic Checklist. SPECIAL PUBLICATION OF THE MUSEUM OF SOUTHWESTERN BIOLOGY, NUMBER 11: 1–373 - get paper here
  • Gans, C. 2005. CHECKLIST AND BIBLIOGRAPHY OF THE AMPHISBAENIA OF THE WORLD. Bull. Am. Mus. Nat. Hist. 289: 1-130 - get paper here
  • Gans, Carl 1964. The South American species of Amphisbaena with a vertically keeled tail (Reptilia, Amphisbaenidae). Senckenbergiana biologica 45 (3/5): 387-416
  • 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, 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
  • OLIVEIRA, HENRIQUE; THOMAZ SINANI, ROULLIEN SILVA & HENRIQUE COSTA. 2022. Robert’s Wormlizard, Amphisbaena roberti (Squamata, Amphisbaenidae): attempted predation and an updated distribution map. Reptiles & Amphibians 29(1): 169–174. - 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, 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
  • Vanzolini P E 1991. Biometry and geographical differentiation of Amphisbaena roberti Gans, 1964 (Reptilia, Amphisbaenia). Pap. Avul. Zool., Sao Paulo 37 (24): 363-377
  • Vanzolini P E 1992. Cercolophia, a new genus for the species of Amphisbaenia with a terminal vertical keel on the tail (Reptilia, Amphisbaenia). Pap. Avul. Zool., Sao Paulo 37 (27): 401-412
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