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Ctenotus eutaenius STORR, 1981

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Black-backed Yellow-lined Ctenotus 
SynonymCtenotus eutaenius STORR 1981: 129
Ctenotus eutaenius — COGGER 2000: 424
Ctenotus eutaenius — WILSON & SWAN 2010 
DistributionAustralia (Queensland)

Type locality: Chartera Towers, in 20° 05’ S, 146° 16’ E, Qld.  
Reproductionoviparous 
TypesHolotype: QM J39467 (formerly AMS R93408) 
DiagnosisDiagnosis: “A member of the C. lesueurii group, inornatus subgroup, differing from all others by back and sides black with 10 white stripes. Similar in coloration to members of the atlas and colletti groups, but distinguishable by wide sub- digital calli and large second supraocular.” (Storr 1981)

Description (based on holotype and paratype): “Snout-vent length (mm): 82,46.5. Length of appendages (% SVL): foreleg 24,28; hindleg 40,51; tail 221, 209. Nasals separated or just touching. Prefrontals forming a short or long suture. Supraoculars 4, first 3 in contact with frontal, second much wider than first and third. Supraciliaries 9, fourth to penultimate much smaller than others. Upper ciliaries 10-12. Second loreal 1.2-1.5 times as wide as high. Presuboculars 2. Upper labials 8. Ear lobules 4 or 5; obtuse in juvenile, subacute in adult; second or third largest. Nuchals 2 or 3. Midbody scale rows 30. Toes not compressed; 20-22 lamellae under fourth, each with a wide callus.

Coloration: Back and sides black with 5 white stripes on each side: a narrow para- vertebral from nape to tail (on which it becomes buffy-brown), a narrow dorsal from nape to rump, a narrow dorsolateral from last supraocular to tail (on which it is brownish-white), a narrow upper lateral from temple to tail (on which it is wider and buffy-brown), and a wide midlateral from below eye to tail (on which it is brownish-white). Also some indication anteriorly of a wide white lower lateral stripe.” (Storr 1981) 
CommentLimb morphology: 5 digits, 5 toes (Singhal et al. 2018, Cogger 2014) 
References
  • 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
  • Covacevich J.A., Couper, P.J., McDonald, K.R. 1998. Reptile diversity at risk in the Brigalow Belt, Queensland. Memoirs of the Queensland Museum 42 (2): 475-486 - get paper here
  • Prates, I., Hutchinson, M. N., Singhal, S., Moritz, C., & Rabosky, D. L. 2023. Notes from the taxonomic disaster zone: Evolutionary drivers of intractable species boundaries in an Australian lizard clade (Scincidae: Ctenotus). Molecular Ecology, 00, 1–25
  • 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 1981. Ten new Ctenotus (Lacertilia: Scincidae) from Australia. Rec. West. Austr. Mus. 9 (2): 125-146 - get paper here
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
 
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