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Leposternon cerradensis RIBEIRO, VAZ-SILVA & SANTOS JR, 2008

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Higher TaxaAmphisbaenidae, Amphisbaenia, Lacertoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesPortuguese: Cobra-de-Duas-Cabeças-do-Cerrado 
SynonymLeposternon cerradensis RIBEIRO, VAZ-SILVA & SANTOS JR 2008
Amphisbaena cerradensis — MOTT & VIEITES 2009
Leposternon cerradensis — RIBEIRO et al. 2018
Amphisbaena cerradensis — LINDKEN et al. 2024 
DistributionBrazil (SW Goiás)

Type locality: Espora Hydroelectric Power Plant reservoir
(18º39’48.4”S; 51º52’17.9”W), municipality of Aporé, SW Goiás state, Brazil.  
Reproductionoviparous 
TypesHolotype: MZUSP 96347 
DiagnosisDiagnosis: Leposternon cerradensis is a medium-sized amphisbaenian (largest specimen snout-vent length 385 mm) diagnosed by the following combination of characters (measurements in mm): one or two pairs of precloacal pores, 299–341 dorsal postpectoral half-annuli, 302–349 ventral postpectoral half-annuli, 13–15 tail annuli, 118–121 precloacal vertebrae, 32–37 dorsal segments in midbody half-annulus, 30–36 ventral segments in midbody half-annulus, two supralabials, two infralabials, four series of large plates in dorsal head shields posterior to rostronasal, pectoral shields mostly diamond-shaped, head length 2.6–3.2% snoutvent length, rostronasal length 20.4–23.1% head length, azygous width 30.8–41.9% head width, azygous length 40.1–51.4% head length, frontal length with 23.7–38.2% head length, and prefrontal length 37.2– 44.4% head length. 
CommentAbundance: Rare. This is one of the species called “lost” and “rediscovered” by Lindken et al. 2024. 
EtymologyThe specific epithet “cerradensis” refers to the central Brazilian savannas ecoregion (in Central Brazil), where the new species was collected. 
References
  • 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
  • Lindken T.; Anderson, C. V., Ariano-Sánchez, D., Barki, G., Biggs, C., Bowles, P., Chaitanya, R., Cronin, D. T., Jähnig, S. C., Jeschke, J. M., Kennerley, R. J., Lacher, T. E. Jr., Luedtke, J. A., Liu, C., Long, B., Mallon, D., Martin, G. M., Meiri, 2024. What factors influence the rediscovery of lost tetrapod species? Global Change Biology, 30: 1-18 - 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
  • Ribeiro, S.; Vaz-Silva, W. & Santos Jr, A.P. 2008. New pored Leposternon (Squamata, Amphisbaenia) from Brazilian Cerrado. Zootaxa 1930: 18–38 - get paper here
  • Ribeiro, Síria; Adriano Lima Silveira and Alfredo P. Santos-jr 2018. A New Species of Leposternon (Squamata: Amphisbaenidae) from Brazilian Cerrado with a Key to Pored Species. Journal of Herpetology 52 (1): 50-58 - get paper here
  • RIBEIRO, SIRIA; ALFREDO P. SANTOS-JR, HUSSAM ZAHER 2015. A new species of Leposternon Wagler, 1824 (Squamata, Amphisbaenia) from northeastern Argentina. Zootaxa 4034 (2): 309–324 - get paper here
 
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