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Amerotyphlops yonenagae (RODRIGUES, 1991)

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Higher TaxaTyphlopidae (Typhlopinae), Typhlopoidea, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Yonenga Worm Snake
Portuguese: Cobra-Cega-do-São-Francisco 
SynonymTyphlops yonenagae RODRIGUES 1991
Typhlops yonenagae — MCDIARMID, CAMPBELL & TOURÉ 1999: 124
Typhlops yonenagae — LAMBERTZ 2010
Amerotyphlops yonenagae — HEDGES et al. 2014
Typhlops yonenagae — WALLACH et al. 2014: 774
Amerotyphlops yonenagae — NOGUEIRA et al. 2019 
DistributionBrazil (Bahia)

Type locality: “Brasil: Bahia: Santo Inácio (11°06’ S, 42°44’ W).”  
Reproductionoviparous 
TypesHolotype: MZUSP 10086 
DiagnosisDiagnosis: “Typhlopidae pequeno com sutura nasal incompleta. Dezoito escamas ao redor domeio do corpo, sem reducoes; 259 a 269 escamas dorsais. Dorso creme com uma linha mediodorsal escura bern marcada; ventre imaculado.” [from RODRIGUES 1991] 
Commentmax length: 200 mm.

The only differences between T. yonenagae and T. amoipira are the total number of dorsal scales (212-242 in T. amoipira; 259-291 in T. yonenagae) and color pattern. Specimens of T. yonenagae are creamy brown, with a conspicuous middorsal line along body extending from posterior part of head to tail. Specimens of T. amoipira are less pigmented and the line, mostly inconspicuous, is present only in the anterior third of body in juveniles.

Photo in Lambertz (2010). 
EtymologyNamed after Dr. Yatiyo Yonenaga-Yassuda, a Brazilian biologist of Japanese descent who specializes in vertebrate genetics, particularly rodents. She took three degrees at Universidade de Sao Paulo, the last one a doctorate (1973), and became an Assistant Professor in the university's Biological Science Institute (1969). 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Garda, A.A.; T.B. Costa; C.R. Santos-Silva; D.O. Mesquita; R.G. Faria; B.M. Conceição; I.R.S. Silva; A.S. Ferreira; S.M. Rocha; C.N.S. Palmeira; R. Rodrigues; S.F. Ferrari; S. Torquato. 2013. Herpetofauna of protected areas in the Caatinga I: Raso da Catarina Ecological Station (Bahia, Brazil). Check List 9 (2):405-414 - 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, Arredondo JC, Grazziotin FG, et al. 2018. Molecular phylogeny and hemipenial diversity of South American species of Amerotyphlops (Typhlopidae, Scolecophidia). Zoologica Scripta 48: 139– 156 - get paper here
  • GUEDES, THAÍS B.; CRISTIANO NOGUEIRA & OTAVIO A. V. MARQUES 2014. Diversity, natural history, and geographic distribution of snakes in the Caatinga, Northeastern Brazil. Zootaxa 3863 (1): 001–093 - get paper here
  • Hamdan, B. & R. M. Lira-da-Silva 2012. The snakes of Bahia State, northeastern Brazil: species richness, composition and biogeographical notes. Salamandra 48 (1): 31-50 - get paper here
  • Hamdan, B.; D.P. Coelho; A.B. D’Angiolella; E.J.R. Dias; R.M. Lira-da-Silva. 2013. The Reptile Collection of the Museu de Zoologia, Universidade Federal da Bahia, Brazil. Check List 9 (2):257-262 - get paper here
  • Hedges, S.B., Marion, A.B., Lipp, K.M., Marin, J. & Vidal, N. 2014. A taxonomic framework for typhlopid snakes from the Caribbean and other regions (Reptilia, Squamata). Caribbean Herpetology 49: 1–61 - get paper here
  • Lambertz, M. 2010. Kommentierte Liste der squamaten Reptilien des Sanddünengebietes am mittleren Rio São Francisco (Bahia, Brasilien) unter besonderer Berücksichtigung endemischer Faunenelemente. Ophidia 4 (2): 2-17 - get paper here
  • McDiarmid, R.W.; Campbell, J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. [type catalogue] Herpetologists’ League, 511 pp.
  • Nogueira, Cristiano C.; Antonio J.S. Argôlo, Vanesa Arzamendia, Josué A. Azevedo, Fausto E. Barbo, Renato S. Bérnils, Bruna E. Bolochio, Marcio Borges-Martins, Marcela Brasil-Godinho, Henrique Braz, Marcus A. Buononato, Diego F. Cisneros-Heredia, 2019. Atlas of Brazilian snakes: verified point-locality maps to mitigate the Wallacean shortfall in a megadiverse snake fauna. South American J. Herp. 14 (Special Issue 1):1-274 - get paper here
  • Rodrigues M T 1991. Herpetofauna das dunas interiores do rio Sao Francisco, Bahia, Brasil. 4. Uma nova especie de Typhlops (Ophidia, Typhlopidae). Pap. Avul. Zool., Sao Paulo 37 (22) 1991: 343-346 - get paper here
  • Rodrigues M. T. & Flora Acunã Juncá 2002. Herpetofauna of Quaternary sand dunes of the middle Rio São Francisco, Bahia, Brazil. VII. Typhlops amoipira sp. nov., a possible relative of Typhlops yonenagae (Serpentes, Typhlopidae). Papéis Avulsos de Zoologia 42: 323-331 - get paper here
  • Rodrigues, M.T. 2003. Herpetofauna da Caatinga. In: I.R. Leal, M. Tabarelli & J.M.C. Silva (eds.). Ecologia e conservação da Caatinga, pp. 181-236. Editora Universitária, Universidade Federal de Pernambuco, Recife, Brasil.
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
 
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