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Nannoscincus greeri SADLIER, 1987

IUCN Red List - Nannoscincus greeri - Endangered, EN

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Higher TaxaScincidae, Eugongylinae (Eugongylini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Greer's Elf Skink 
SynonymNannoscincus greeri SADLIER 1987: 63
Nannoscincus greeri — ADLER, AUSTIN & DUDLEY 1995
Nannoscincus greeri — BAUER & SADLIER 2000
Nannoscincus greeri — SADLIER et al. 2014 
DistributionNew Caledonia

Type locality: lower east slope of Mt Koyaboa, Poindimié.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: CAS 159606 
DiagnosisDiagnosis: Nannoscincus green 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 with 3-4 fine striations; adult colour pattern with dark markings to the dorsal and lateral surface; ear opening positioned two scales posterior to lower secondary temporal; presacral vertebrae 29; phalangeal formula for pes 2.3.4.5.4 (Sadlier et al. 2002: 243).

DESCRIPTION. Based on 12 specimens unless otherwise stated, measurements for adults only (SVL > 30 mm, n =9). Measurements: maximum SVL 33.5 mm; distance from axilla to groin 59.1-68.9% ofSVL ( =62.0%, n =9); distance from forelimb to snout 34.3-42.6% of SVL ( = 36.8%, n = 9); hindlimb length 22.9-25.8% of SVL ( = 24.2%, n =8).
Scalation: prefrontals absent (54.2%, n = 12), or when present very small and widely separated; supraciliaries usually 7 (91.3%, n = 11.5), rarely 8 or 6; ear opening positioned 2 scales posterior to lower secondary temporal; body scales with 3-4 fine striations, midbody scale rows 22-24 (=23.7, sd. =0.62); paravertebral scales 47-52 (=49.4, sd. =1.67, n = 9); scales on top of fourth finger 5 (n = 7); lamellae beneath fourth finger 5-6 ( = 5.7, sd. = 0.53, n = 8); scales on top of fourth toe 7 (n =9); lamellae beneath fourth toe 15-19 (=17.2, sd. =1.32, n =9).
Osteology: presacral vertebrae 29 (n = 7); phalangeal formula for manus and pes 2.3.4.4.3 and 2.3.4.5.4 respectively.
Colouration: dorsal colour light to mid brown with dark flecks distributed irregularly over dorsal surface and aligned along both vertebral and paravertebral axis; nape with a pale blotch, dark-edged posteriorly in some individuals. Lateral surface variable, lighter, as dark, or slightly darker than dorsal surface, and with a dark marking to each scale forming rough lines along side of body in boldly marked individuals. Dorsal and lateral surfaces defined by a dark brown to black (darker than lateral colour) dorsolateral stripe, extending from back of eye (inflected over tympanic region) to level of hindlimbs, most complete and weakly pale-edged anteriorly, becoming broken and ill-defined along posterior half of body and on tail. Head darker at sides than adjacent areas of body, dark colouration extending around lower edge of rostral scale and inflecting upwards to form a dark midrostral streak in boldly marked individuals, subocular labials with pale markings. Ventral surface pale with scattered brown markings near ventrolateral edge of body (Sadlier et al. 2002: 244). 
CommentUncommon and restricted to a few localities.

Distribution: see map in SADLIER et al. 2014: 54. 
EtymologyNamed after Allen E. Greer, Australian herpetologist. 
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, 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
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • 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
  • 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
  • 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
 
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