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Amphisbaena neglecta DUNN & PIATT, 1936

IUCN Red List - Amphisbaena neglecta - Data Deficient, DD
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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Neglected Worm Lizard
Portuguese: Cobra-de-Duas-Cabeças, Cobra-Cega 
SynonymAmphisbaena neglecta DUNN & PIATT 1936
Amphisbaena neglecta — HOOGMOED & AVILA-PIRES 1991
Amphisbaena neglecta — GANS 2005: 17
Amphisbaenia neglecta — JORGE et al. 2022 (in error) 
DistributionBrazil (E C Mato Grosso into C Goias)

Type locality: Brazil: Mato Grosso: Chapada, now Chapada dos Guimarades (15°26’S, 55°45’W).  
Reproductionoviparous 
TypesHolotype: ANSP 13019. Paratypes: ANSP 13020–13022 
DiagnosisDiagnosis: A form of Amphisbaena with the postrostral head shield paired, the midventral segments of each annulus broadened to twice their length and with a single pair of round precloacal pores. Specimens have 151 to 161 body annuli; 20 to 21 caudal annuli; an autotomy constriction at the 4th to 6th postcloacal annulus; 12 to 14 dorsal and 12 to 14 ventral segments to a midbody annulus; and 4 to 6 precloacal segments. The color is dark brown dorsally fading slightly toward the ventral surface. On the sides each segment begins to be bordered by a lighter edge, which is most marked ventrally. The dark color drops out by segments along the chin, cloacal region, and the anterior portion of the ventral surface (Gans 1962).


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CommentDistribution: map in HOOGMOED & AVILA-PIRES 1991.

Morphology: This species is one of ~20 species of Amphisbaena with two precloacal pores (Ribeiro et al. 2019). 
EtymologyNamed after Latin neglecta, disregarded, not cared for, neglected, ignored. (Esteban Lavilla, pers. comm., April 2024) 
References
  • Dunn, EMMETT REID, AND JEAN PIATT 1936. A new Amphisbaena from Brazil. Proc. Acad. Nat. Sci. Philadelphia 88: 527-528 - get paper here
  • Gans, C. 1962. Redefinition and description of the Brazilian reptiles Amphisbaena silvestrii Boulenger and A. neglecta Dunn and Piatt. Copeia 1962 (1): 164-170 - 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
  • 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
  • Hoogmoed M.S.; de Avila-Pires T C S 1991. A new species of small Amphisbaena (Reptilia: Amphisbaenia: Amphisbaenidae) from western Amazonian Brazil. BOLETIM DO MUSEU PARAENSE EMILIO GOELDI SERIE ZOOLOGIA 7 (1): 77-94
  • JORGE, R. F., & PEÑA, A. P. 2022. REPTILES FROM AN URBAN PARK IN THE CERRADO OF CENTRAL BRAZIL. Herpetological Conservation and Biology, 17(2), 413-422 - get paper here
  • PINNA, PEDRO H.; ANDRÉ F. MENDONÇA; ADRIANA BOCCHIGLIERI & DANIEL S. FERNANDES 2010. A new two-pored Amphisbaena Linnaeus from the endangered Brazilian Cerrado biome (Squamata: Amphisbaenidae). Zootaxa 2569: 44–54 - 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
  • Teixeira, Mauro; Francisco Dal Vechio, Antonio Mollo Neto, and Miguel Trefaut Rodrigues 2014. A New Two-Pored Amphisbaena Linnaeus, 1758, from Western Amazonia, Brazil (Amphisbaenia: Reptilia). South American J. Herp. 9 (1): 62-74. - get paper here
  • Vanzolini, P.E. 2002. AN AID TO THE IDENTIFICATION OF THE SOUTH AMERICAN SPECIES OF AMPHISBAENA (SQUAMATA, AMPHISBAENIDAE). Pap. Avul. Zool., Sao Paulo 42(15):351-362 - get paper here
  • Vanzolini,P.E. 1991. Two new small species of Amphisbaena from the fossil dune field of the middle Rio São Francisco, State of Bahia, Brasil (Reptilia, Amphisbaenia). Pap. Avul. Univ. Sao Paulo. 37 (17): 259-276
  • Ribeiro, L. B., Gomides, S. C., & Costa, H. C. 2018. A New Species of Amphisbaena from Northeastern Brazil (Squamata: Amphisbaenidae). Journal of Herpetology 52 (2): 234–241 - get paper here
 
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