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Lerista petersoni STORR, 1976

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Common NamesE: Pale Broad-blazed Slider 
SynonymLerista connivens petersoni STORR 1976: 253
Lerista petersoni — COGGER 1983: 175
Lerista petersoni — STORR 1991
Lerista talpina STORR 1991
Lerista talpina — COGGER 2000: 762
Lerista nichollsi petersoni — COGGER 2000: 527
Lerista petersoni — COGGER 2000: 761
Lerista petersoni — WILSON & SWAN 2010
Telchinoscincus petersoni — WELLS 2012: 133
Lerista petersoni — APLIN et al. 2022 
DistributionAustralia (mid-western interior of Western Australia)

Type locality: Yinnietharra, 24° 39’ S, 116° 09’ E, W. A.

talpina: Australia (Western Australia); Type locality: 2 km W Bullara, WA [22°41'S 114°01'E]  
TypesHolotype: WAM R46197
Holotype: WAM R74947 [talpina] 
DiagnosisDiagnosis: Moderately large and stout Lerista with digits 0 + 2, forelimb groove, eyelid immovable (i.e. large transparent disc surrounded by a series of granules), dark upper lateral stripe, and wide vertebral stripe. Distinguishable from L. C. connivens by immovable (rather than movable) eyelid, more numerous nuchals and subdigital lamellae, slightly longer hindleg, and occurrence of individuals with frontoparietals and interparietal free.
Distinguishable from L. nichollsi by greater size, two loreals (rather than one), and wider, more ragged-edged vertebral stripe. (Storr 1976)

Description: Snout-vent length (mm): 67.5-69. Length of appendages etc. (% SVL): hindleg 16-17; snout to forelimb groove 21-22.
Nasals forming a short to moderately long median suture. Prefrontals widely separated. In holotype frontoparietals narrowly separated, much smaller than interparietal; in paratype frontoparietals and interparietal fused (as in L. c. connivens and L. nichollsi). Nuchals 2-3. Supraoculars 3, first two contacting frontal. Supraciliaries 1 + 2 or 4. Upper labials 6. Upper secondary temporal much the largest, lower secondary much the smallest (when not fused to last labial). Midbody scale rows 20-22. Lamellae under longer toe 12.
Head, vertebral stripe and tail greyish brown; vertebral stripe wider than whitish laterodorsal strip of ground colour and enclosing four series of dark brown spots. Dark brown upper lateral stripe from nasal or lores back through orbit to tail. Upper labials barred with dark brown. Lower surface whitish except for grey dots on tail.(Storr 1976) 
CommentSynonymy: WELLS 2012: 133 lists this species as a synonym of Telchinoscincus (= Lerista) petersoni STORR 1984, which was confirmed by Aplin et al. 2022.

Limb morphology: 0 digits, 2 toes 
EtymologyNamed after the collector of the type, Mr. Magnus Peterson. 
  • Aplin, K.P.; M.A. Cowan, and P. Doughty 2022. Synonymy of two west coast Lerista (Reptilia: Scincidae) species. RECORDS OF THE WESTERN AUSTRALIAN MUSEUM 37: 022–025 - get paper here
  • Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp. - get paper here
  • Cogger, H.G. 2000. Reptiles and Amphibians of Australia, 6th ed. Ralph Curtis Publishing, Sanibel Island, 808 pp.
  • Couper, P., Covacevich, J., Amey, A. & Baker, A. 2006. The genera of skinks (Family Scincidae) of Australia and its island territories: diversity, distribution and identification. in: Merrick, J.R., Archer, M., Hickey, G.M. & Lee, M.S.Y. (eds.). Evolution and Zoogeography of Australasian Vertebrates. Australian Scientific Publishing, Sydney, pp. 367-384
  • 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
  • Skinner, Adam; Michael S Y Lee and Mark N Hutchinson 2008. Rapid and repeated limb loss in a clade of scincid lizards. [Lerista]. BMC Evolutionary Biology 8:310 - get paper here
  • Storr G M 1991. Four new members of the Lerista nichollsi complex (Lacertilia: Scincidae). Rec. West. Austr. Mus. 15 (1) 1991: 139-147 - get paper here
  • Storr, G. M. 1976. Revisionary notes on the Lerista (Lacertilia: Scincidae) of Western Australia. Rec. West. Aust. Mus. 4: 241-256 - get paper here
  • Storr, G. M., Smith, L. A. & Johnstone, R. E. 1981. Lizards of Western Australia. I. Skinks. Perth: University of Western Australia Press and Western Australian Museum, 200 pp.
  • Storr, G. M.; L. A. Smith, and R. E. Johnstone 1999. Lizards of Western Australia. I. Skinks. Revised Edition. Western Australian Museum
  • Wells, R. 2012. Some Taxonomic and Nomenclatural Considerations on the Class Reptilia in Australia. A Reclassification of the Genus Lerista (Scincidae), including the Descriptions of New Genera. Australian Biodiversity Record (1): 1-361
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
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