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Lioscincus vivae SADLIER, BAUER, WHITAKER & SMITH, 2004

IUCN Red List - Lioscincus vivae - Critically Endangered, CR
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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymLioscincus vivae SADLIER, BAUER, WHITAKER & SMITH 2004
Lioscincus vivae — SADLIER et al. 2015 
DistributionNew Caledonia

Type locality: New Caledonia, Province Nord, Massif de Kopéto, Mont Vert, 21°10  
Reproductionoviparous (phylogenetic imputation, fide Zimin et al. 2022) 
TypesHolotype: MNHN-RA 2003.1003 (formerly AMS R163227): adult female; collected by A. H. Whitaker and V.A. Whitaker, 25 October 2002; paratypes at AMS and CAS 
DiagnosisDiagnosis: Lioscincusvivae, sp. nov. can be distinguished from all other members of its genus except L. steindachneri by the following combination of characters: frontoparietals fused; anterior loreal elliptical and in narrow contact with upper labials; lower eyelid with an obvious, centrally located semi-transparent disc; each parietal scale bordered by an upper secondary tempo- ral scale and two more or less similar sized scales not noticeably larger than adjacent dorsal scales; body scales smooth.
Lioscincusvivae, sp. nov. is readily distinguished from Lioscincus steindachneri in having: anterior loreal contacting upper labials (vs usually present as a semilunar scale positioned off postero-dorsal edge of enlarged nasal scale and failing to contact labials); labials below eye separated from contact with lower eyelid by a complete subocular row of scales (vs fifth upper labial scale contacting lower eyelid); more paravertebral scale rows (62–65 vs 57–60); color pattern distinctly two-toned with a white midlateral stripe anteriorly with a white midlateral stripe on head and neck (males) or full length (females) of body (vs a pattern of transverse bars with no white midlateral stripe). 
CommentAbundance: only known from its original description (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024. 
EtymologyThe specific epithet is a matronym honoring Vivienne (“Viv”) Whitaker, who collected the holotype and two of the paratypes and who made a major contribution to our field research in northwestern Grand Terre. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - 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
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Sadlier, Ross A., AARon M. BAueR, Glenn M. sheA, and sARAh A. sMith. 2015. Taxonomic resolution to the problem of polyphyly in the New Caledonian scincid lizard genus Lioscincus (Squamata: Scincidae). Records of the Australian Museum 67(7): 207–224 - get paper here
  • SADLIER, ROSS A.;AARON M. BAUER; ANTHONY H. WHITAKER & SARAH A. SMITH 2004. Two New Species of Scincid Lizards (Squamata) from the Massif de Kopéto, New Caledonia. Proc. Cal. Acad. Sci. 55 (1): 208-221 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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