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Nannoscincus gracilis (BAVAY, 1869)

IUCN Red List - Nannoscincus gracilis - Vulnerable, VU
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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: New Caledonian Gracile Dwarf Skink, Slender Elf Skink 
SynonymLygosoma gracilis BAVAY 1869: 24
Mocoa micropus GÜNTHER 1872: 420
Lygosoma (Leiolopisma) gracile — SMITH 1937: 224
Anotis gracilis — GREER 1974
Nannoscincus gracilis — SADLIER 1987: 58
Nannoscincus gracilis — ADLER, AUSTIN & DUDLEY 1995
Nannoscincus gracilis — SADLIER et al. 2014 
DistributionNew Caledonia (Poindimié in the north to Col de Nassirah in south)

Type locality: “Nouvelle-Calédonie” (by implication).  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesLectotype: BMNH 1946.8.17.64. Designation by Sadlier (1987). Syntypes: MNHN-RA 5395, MNHN-RA 5395A, BMNH 1946.8.17.63-64 
DiagnosisDiagnosis (genus): it is distinguished from other genera in the group by a combination of morphological synapomorphies that includes: fusion of the atlantal arches and intercentrum of the first cervical vertebra into a single element; an elongate body with 29 or more presacral vertebrae; phalanges of digits of the forelimbs reduced, with a phalangeal formula of 2.3.4.4.3 or less for the manus (Sadlier, 1990; Bauer & Sadlier, 2000).


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CommentCommon where it is found.

The genus Nannoscincus has been identified as a member of the Australasian Eugongylus group of lygosomine skinks (Greer, 1979).

Distribution: see map in SADLIER et al. 2014: 56. 
EtymologyNamed after Latin “gracilis”, meaning small or lanky, or gracile. 
References
  • Adler,G.H.; Austin,C.C. & Dudley,R. 1995. Dispersal and speciation of skinks among archipelagos in the tropical Pacific Ocean. Evolutionary Ecology 9: 529-541 - get paper here
  • 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.
  • Bauer, A.M. & Sadlier,R.A. 1993. Systematics, biogeography and conservation of the lizards of New Caledonia. Biodiv. Lett. 1: 107-122 - get paper here
  • Bauer, A.M., Jackman, T., Smith, S.A., Saidler, R.A. & Austin, C.C. 2004. Note: Vocalization in Nannoscincus gracilis (New Caledonian Gracile Dwarf Skink). Herpetological Review 35: 268–269 - get paper here
  • Bauer, Aaron M.;Vindum, Jens V. 1990. A checklist and key to the herpetofauna of New Caledonia, with remarks on biogeography. Proc. Cal. Acad. Sci. 47 (2): 17-45 - get paper here
  • Bavay,A. 1869. Catalogue des Reptiles de las Nouvelle - Caledonie et description d'especes nouvelles. Memoires Societe Linniene de Normandie 15: 1-37
  • DUVAL, Thomas; Stéphane ASTRONGATT & Mickaël SANCHEZ 2019. Inventaire herpétologique de la forêt de Povila (province Nord, Nouvelle-Calédonie), avec une comparaison des protocoles de détection. Bull. Soc. Herp. Fr. 171: 13-36
  • Greer, A.E. 1974. The generic relationships of the scincid lizard genus Leiolopisma and its relatives. Australian Journal of Zoology 31: 1-67. - get paper here
  • Günther, A. 1872. On some new species of reptiles and fishes collected by J. Brenchley, Esq. Ann. Mag. Nat. Hist. (4) 10 (60): 418-426. - get paper here
  • Sadlier R A 1987. A review of the scincid lizards of New Caledonia. Rec. Austral. Mus. 39(1) 1987: 1-66 [1986] - get paper here
  • Smith, M.A. 1937. A review of the genus Lygosoma (Scincidae: Reptilia) and its allies. Records of the Indian Museum 39 (3): 213-234
  • 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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