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Crenadactylus horni (LUCAS & FROST, 1895)

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Higher TaxaDiplodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Central Uplands clawless geckos 
SynonymEbenavia horni LUCAS & FROST 1895
Crenadactylus ocellatus horni — STORR & HAROLD 1978
Crenadactylus horni — WELLS & WELLINGTON 1984
Crenadactylus horni — DOUGHTY et al. 2016
Crenadactylus horni — CHAPPLE et al. 2019: 121 
DistributionAustralia (South Australia, Northern Territory); Type locality: Charlotte Waters, Northern Territory fide Dixon and Kluge (1964), donated to National Museum Victoria, Melbourne, Australia (NMV).  
TypesHolotype: NMV D7533, adult female, Camp 4 of the Horn Expedition, by W.B. Spencer, April 1897. Stored in 70% ethanol at NMV. 
DiagnosisDiagnosis: A moderately large (to 34.8 mm SVL), robust species of Crenadactylus with wide (HW/HL 0.48– 0.63) and deep (HD/HL 0.28–0.42) head with a long snout (SnL/HL 0.34–0.42). Rostral in full contact with nostril, enlarged internasal extending beyond supranasal, 2 slightly enlarged postmentals, dorsal scales homogeneous, smooth or feebly keeled, 6 pre-cloacal pores, innermost pore-bearing scales separated by an intervening scale, no enlarged tubercles on original tails. Ground colour tan and light brown; dorsal pattern consists of well-defined pale and dark longitudinal stripes, lateral zones pale tan with irregular dark brown stippling, occasionally forming 1 or 2 broken or weakly defined lateral lines; ventrum pale off-white with moderate to weak stippling (Doughty et al. 2016).
CommentSynonymy: This species has been previously synonymized with Crenadactylus ocellatus bilineatus, but revalidated by Doughty et al. 2016.

Distribution: See map in Doughty et al. 2016: Fig. 2.

Habitat. Collection records for several specimens mention they were taken from spinifex clumps or from under rocks near spinifex, with records also from a rocky gully, rock platforms or outcrops (Doughty et al. 2016). 
EtymologyNamed for William A. Horn, financer and early participant of the Horn Scientific Expedition to central Australia in 1894. 
  • Chapple, David G.; Reid Tingley, Nicola J. Mitchell, Stewart L. Macdonald, J. Scott Keogh, Glenn M. Shea, Philip Bowles, Neil A. Cox, John C. Z. Woinarski 2019. The Action Plan for Australian Lizards and Snakes 2017. CSIRO, 663 pp. DOI: 10.1071/9781486309474 - get paper here
  • DOUGHTY, PAUL; RYAN J. ELLIS, PAUL M. OLIVER 2016. Many things come in small packages: Revision of the clawless geckos (Crenadactylus: Diplodactylidae) of Australia. Zootaxa 4168 (2): 239–278 - get paper here
  • Lucas, A. H. S., and C. Frost. 1895. Preliminary notice of certain new species of lizards from central Australia. Proceedings of the Royal Society of Victoria, 7: 264-269 - get paper here
  • Storr, G.M., & Harold, G. 1978. Herpetofauna of the Shark Bay Region, Western Australia. Rec. West. Aust. Mus. 6 (4): 449-467. - get paper here
  • Wells R W; Wellington C R 1984. A synopsis of the class Reptilia in Australia. Australian Journal of Herpetology 1 (3-4): 73-129 [31 Dec 1983 on cover]
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