Nannoscincus exos BAUER & SADLIER, 2000

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Higher Taxa	Scincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies
Common Names
Synonym	Nannoscincus exos BAUER & SADLIER 2000: 250 Nannoscincus exos SADLIER, BAUER & WHITAKER, 2002 Nannoscincus exos — SADLIER et al. 2014
Distribution	New Caledonia Type locality: valley west of Ouinguip, 20° 38’ 16’’ S, 164° 52’ 02’’ E.
Reproduction	oviparous (not imputed, fide Zimin et al. 2022)
Types	Holotype: MNHN-RA 1997.3800 (fomerly AMS R151348)
Diagnosis	Diagnosis: Nannoscincus exos can be distinguished from all other members of the genus by the following combination of characters: frontoparietals fused; loreal single; left oviduct lost in females; lower eyelid with a semi-translucent window; ear opening minute; body scales smooth; dorsal colour distinctly lighter than lateral; h) ear opening positioned two scales posterior to lower secondary temporal; presacral vertebrae 30; phalangeal formula for pes 2.3.4.4.3 (Sadlier et al. 2002: 251).
Comment	The original description was supposed to appear as SADLIER, BAUER & WHITAKER, 2000. However, BAUER & SADLIER’s monograph (2000) was published earlier and therefore has to be considered as original description. Distribution: see map in SADLIER et al. 2014: 54. Abundance: only known from the type locality (Meiri et al. 2017).
Etymology	The species name is from the Latin exos, for lacking or without bone and alludes the reduced number of phalanges in the pes which clearly distinguishes Nannoscincus exos from its sister species N. hanchisteus and N. humectus.
References	Bauer, A. M. & SADLIER, R. A. 2000. The herpetofauna of New Caledonia. Contributions to Herpetology, 17; Society for Study Amphibians and Reptiles, Ithaca, New York. 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, R. A., A. M. BAUER & A. H. WHITAKER 2002. The scincid lizard genus Nannoscincus from New Caledonia in Southwest Pacific: a review of the morphology and distribution of species in the Nannoscincus mariei species group, including the description of three new species from Province Nord. Zoologica Neocaledonica 5. Systématic et endemisme en Nouvellee-Calédonie. pp 233-255. J. Naut & P. Grandcolas (Eds). Memoires du Muséum national d'Histoire naturelle, Vol. 187 , Paris SADLIER, Ross A.; Aaron M. BAUER, Perry L. WOOD Jr., Sarah A. SMITH, Anthony H. WHITAKER & Todd JACKMAN 2014. Cryptic speciation in the New Caledonian lizard genus Nannoscincus (Reptilia: Scincidae) including the description of a new species and recognition of Nannoscincus fuscus Gunther. Memoires du Museum National d'Histoire Naturelle, 206: 45-68. 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
External links	IUCN Red List National Center for Biotechnology Information https://endemia.nc/en/faune/fiche1075 Google images

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