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Ctenotus iapetus STORR, 1975

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Common NamesE: North West Cape Ctenotus 
SynonymCtenotus quattuordecimlineatus iapetus STORR 1975: 236
Ctenotus iapetus — SMITH & JOHNSTONE 1981
Ctenotus iapetus — STORR et al. 1999
Ctenotus quattuordecimlineatus iapetus — COGGER 2000: 438
Ctenotus iapetus — COGGER 2000: 751
Ctenotus iapetus — WILSON & SWAN 2010 
DistributionAustralia (coastal NW Western Australia)

Type locality: 13 km S of North West Cape, in 21° 54’ S, 114° 08’ E, W. A.  
TypesHolotype: WAM R27887 
DiagnosisDiagnosis: “A member of the taeniolatus group with 12 pale lines and stripes on a dark ground. Distinguishable from C. q. quattuordecimlineatus by one (rather than two) pate upper lateral stripes, and from C. q. atlas by presence of pale dorsal line between paravertebral and dorsolateral lines.” (Storr 1975: 237)

Description: “Snout-vent length (mm): 39-59 (48.5). Length of appendages (% SVL): foreleg 25-31 (28.0), hindleg 45-53 (48.7), tail 214-240 (225).
Nasals forming a short median suture. Prefrontals forming a median suture. Supraoculars 4, first 3 in contact with frontal. Supraciliaries 7. Palpebrals 10-13 (11.5). Second loreal 1.2-1.9 (1.47) times as wide as high. Upper labials 8. Ear lobules 2-4 (3.0), acute in adults, obtuse in juveniles. Nuchals 2 or 3 (2.5). Midbody scale rows 25-27 (26.0). Lamellae under fourth toe 25-28 (26.2), each with a dark obtuse keel or narrow to moderately wide callus.
Back and sides black or blackish brown. On each side a white paravertebral and dorsolateral line and a dorsal line between them, a narrow upper lateral stripe, and a wide midlateral and ventrolateral stripe.” (Storr 1975: 237) 
CommentLimb morphology: 5 digits, 5 toes (Singhal et al. 2018, Cogger 2014) 
  • Aplin KP & Adams M 1998. Morphological and genetic discrimination of new species and subspecies of gekkonid and scincid lizards (Squamata: Lacertilia) from the Carnarvon Basin of Western Australia. J. Royal Soc. Western Australia 81: 201-223 - 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
  • Pianka, E. R. 1969. Sympatry of desert lizards (Ctenotus) in Western Australia. Ecology 50: 1012-1030 - get paper here
  • Pianka, E. R. 1972. Zoogeography and speciation of Australian desert lizards: an ecological perspective. Copeia 1972 (1): 127-144 - 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
  • Smith, L.A. & Johnstone, R.E. 1981. Amphibians and reptiles of Mitchell Plateau and adjacent coast and lowlands, Kimberley, Western Australia. In: Biological Survey of Mitchell Plateau and Admirality Gulf, Kimberley, Western Australia. Western Australian Museum, Perth: pp. 215-227
  • 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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