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Ctenotus tantillus STORR, 1975

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Common NamesE: Kimberley Wedge-snout Ctenotus 
SynonymCtenotus tantillus STORR 1975: 242
Ctenotus tantillus — COGGER 1983: 154
Ctenotus tantillus — COGGER 2000: 449
Ctenotus tantillus — WILSON & SWAN 2010 
DistributionAustralia (Northern Territory,Western Australia)

Type locality: Kununurra, in 15° 42’ S, 128° 42’ E, W. A.  
TypesHolotype: WAM R45567 
DiagnosisDiagnosis: “A member of the schomburgkii group, most like C. pallescens of Northern Territory and C. schomburgkii but distinguishable from both species by its contiguous nasals.” (Storr 1975: 242)

Description: “Snout-vent length (mm): 32-45 (37.2). Length of appendages (% SVL): foreleg 26-30 (27.9), hindleg 39-50 (44.5), tai1148-241 (194).
Nasals forming a short to moderately long median suture. Prefrontals separated. Suoraoculars 4, with first 3 contacting frontal (5 with 4 in one specimen). Supraciliaries usually 7, occasionally 6, mean 6.9. Palpebrals 8-10 (9.2). Second loreal 1.0-1.7 -(1.43) times as wide as high. Upper labials usually 7, occasionally 8, mean 7.1. Ear lobules 1-4 (2.5), obtuse, first much the largest. Nuchals 2-5 (3.8). Midbody scale rows 26-30 (27.9). Lamellae under fourth toe 18-23 (20.4), compressed, finely keeled.
Back pale green with or without a dark vertebral and (on each side) dorsal and laterodorsal line. White dorsolateral line, sometimes broken into a series of short dashes. Upper lateral zone black or dark brown, enclosing a series of whitish dots or spots of variable distinctness. White midlateral stripe variable, e.g. it may be well-developed and extending to lores, faint, broken into a series of short dashes, or completely absent. Under surface glossy white.” (Storr 1975: 242) 
CommentLimb morphology: 5 digits, 5 toes (Singhal et al. 2018, Cogger 2014) 
  • 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. J.; Amey, A. P.; Kutt, A. S. 2002. A new species of Ctenotus (Scincidae) from central Queensland. Memoirs of the Queensland Museum 48(1):85-92 - get paper here
  • 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
  • Horner, P. 2009. Three new species of Ctenotus (Reptilia: Sauria: Scincidae) from the Kimberley region of Western Australia, with comments on the status of Ctenotus decaneurus yampiensis. Rec. West. Austr. Mus. 25 (2): 181-199 - get paper here
  • Singhal, Sonal; Huateng Huang, Maggie R. Grundler, María R. Marchán-Rivadeneira, Iris Holmes, Pascal O. Title, Stephen C. Donnellan, and Daniel L. Rabosky 2018. Does Population Structure Predict the Rate of Speciation? A Comparative Test across Australia’s Most Diverse Vertebrate Radiation. The American Naturalist - get paper here
  • Storr, G. M. 1975. The genus Ctenotus (Lacertilia: Scincidae) in the Kimberley and North-west Divisions of Western Australia. Rec. West. Aust. Mus. 3: 209-243 - 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
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
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