Amphisbaena ridleyi BOULENGER, 1890

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Higher Taxa	Amphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies
Common Names	E: Ridley's Worm Lizard Portuguese: Cobra-de-Duas-Cabeças, Cobra-Cega
Synonym	Amphisbaena ridleyi BOULENGER 1890 Amphisbaena ridleyi — GANS 1963 Amphisbaena ridleyi — ESTES & WILLIAMS 1984 Amphisbaena ridleyi — MAUSFELD et al. 2002 Amphisbaena ridleyi — GANS 2005: 19 Amphisbaena ridleyi — GRABOSKI et al. 2022
Distribution	Brazil (Fernando de Noronha, a small volcanic archipelago in the equatorial South Atlantic (3°51’S and 32°25’W), 350 km off the northeastern Brazilian coast). Type locality: ‘‘Porto Bello’’ (= Brazil, according to G. Boulenger, 1890a) and ‘‘Fernando Noronha,’’ Brazil; restricted to ‘‘Fernando da Noronha, Brazil’’ (Gans, 1963: 103).
Reproduction	oviparous
Types	Lectotype: BMNH 88.1.19.7. Lectoparatypes: BMNH 88.1.19.8–88.1.19.15; KM R-4443; MCZ 10789; MNHN 90–419 (= MHNP); SMF 11825; BMNH V.2.2a:RR-1960.1.4.39 (‘‘Porto Bello, W. Indies’’ 5 ‘‘Brazil’’), ZMUC
Diagnosis
Comment	Similar species: A. caeca; Boulenger himself as well as Gray considered the specimen in the British Museum to be A. caeca until Boulenger described it as new species, A. ridleyi.
Etymology	named afterthe collector of the types, Mr. Ridley.
References	Almeida JPFA De, De Freitas MA, Da Silva MB, Valverde MCC, Rodrigues MT, Pires AM, Mott T. 2018. A new four-pored Amphisbaena (Squamata: Amphisbaenidae) from northeastern Brazil. Zootaxa 4514 (4): 553-562. doi: 10.11646/zootaxa.4514.4.8. - 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 Boulenger, G.A. 1890. Reptilia. In Ridley, H. N., Notes on the zoology of Fernando Noronha. Jour. Linnean Soc. London 20: 481-482 Brygoo, E. R. 1990. Les types d'Amphisbaenidés, Pygopodidés, Xantusiidés (Reptiles, Sauriens) du Muséum national d'Histoire naturelle - Catalogue critique. Bull. Mus. Nat. Hist. Nat. 12 (ser. 4) A (3-4), suppl.: 3-18 Estes, Richard and Ernest E. Williams 1984. Ontogenetic Variation in the Molariform Teeth of Lizards. Journal of Vertebrate Paleontology 4 (1): 96-107 - get paper here Falcione, Camila and Alejandra Hernando 2010. A new karyotypic formula for the genus Amphisbaena (Squamata: Amphisbaenidae). Phyllomedusa 9 (1): 75-80 - get paper here Finley Jr., R.B. 1945. Notes on Lizards from Fernando Noronha. Copeia 1945 (3): 162-164 - get paper here Gans, C. 1963. Notes on amphisbaenids (Amphisbaenia, Reptilia). 10. Redescription of Amphisbaena ridleyi Boulenger Copeia 1963 (1): 102-107. - 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 1963. Redescription of Amphisbaena ridleyi Boulenger. Copeia 1963 (1): 102-107 - 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 Graboski, R., Grazziotin, F.G., Mott, T., Trefaut Rodrigues, M., 2022. The phylogenetic position of Ridley's worm lizard reveals the complex biogeographic history of New World insular amphisbaenids. Molecular Phylogenetics and Evolution (2022), Mausfeld, Patrick; Andreas SCHMITZ; Wolfgang BÖHME; Bernhard MISOF; Davor VRCIBRADIC; Carlos Frederico Duarte ROCHA 2002. Phylogenetic Affinities of Mabuya atlantica Schmidt, 1945, Endemic to the Atlantic Ocean Archipelago of Fernando de Noronha (Brazil): Necessity of Partitioning the Genus Mabuya Fitzinger, 1826 (Scincidae: Lygosominae). Zool. Anz. 241: 281–293 - 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
External links	IUCN Red List National Center for Biotechnology Information Google images

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