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Cryptoblepharus cygnatus HORNER, 2007

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Higher TaxaScincidae, Eugongylinae, Scincoidea, Sauria, Squamata (lizards) 
Common NamesSwanson’s snake-eyed skink 
SynonymCryptoblepharus cygnatus HORNER 2007
Cryptoblepharus plagiocephalus — COCTEAU 1836
Cryptoblepharus plagiocephalus — STORR 1976: 56
Cryptoblepharus plagiocephalus — STORR et al. 1981: 24
Cryptoblepharus plagiocephalus — GOW 1981
Cryptoblepharus plagiocephalus — COGGER et al. 1983a: 142
Cryptoblepharus plagiocephalus — JAMES and SHINE 1985: 466
Cryptoblepharus plagiocephalus — WILSON and KNOWLES 1988: 120
Cryptoblepharus plagiocephalus — SADLIER 1990: 26
Cryptoblepharus plagiocephalus — HORNER 1991: 18
Cryptoblepharus plagiocephalus — EHMANN 1992,: 182
Cryptoblepharus plagiocephalus — WOINARSKI and GAMBOLD 1992: 111;
Cryptoblepharus plagiocephalus — GOODFELLOW 1993: 63
Cryptoblepharus plagiocephalus — GRIFFITHS et al. 1997: 95
Cryptoblepharus plagiocephalus — HORNER and GRIFFITHS 1998: 48
Cryptoblepharus plagiocephalus — STANGER et al. 1998: 23
Cryptoblepharus plagiocephalus — HORNER 1999: 60
Cryptoblepharus plagiocephalus — STORR et al. 1999: 24
Cryptoblepharus plagiocephalus — COGGER 2000: 406
Cryptoblepharus plagiocephalus — WILSON and SWAN 2003: 148.
Cryptoblepharus swansoni WELLS and WELLINGTON 1985: 27 (nomen nudum)
Cryptoblepharus cygnatus — WILSON & SWAN 2010 
DistributionAustralia (Northern Territory)

Type locality: Goose Creek, Melville Island, Northern Territory, 11°30’32”S 130°54’19”E. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
TypesHolotype: NTM R.22887, adult male, (Tissue sample No. ABTC-AM6), coll. P. Horner, 8 October 1996, open forest, on Melaleuca sp. trunk. 
CommentDiagnosis. A medium sized (40–44 mm SVL), shortlegged, shallow-headed, arboreal Cryptoblepharus, distinguished from Australian congeners by combination of modal values of six supraciliary scales and 24 mid-body scale rows; mean values of hindlimb length 42.0% of SVL, head depth 43.3% of head length, hemipenis length 10.1% of snout-vent length; callused subdigital lamellae; rounded, plain plantar scales; greyish, longitudinally aligned body pattern and arboreal habits.

Sympatry: Cryptoblepharus cygnatus occurs in sympatry with C. metallicus and C. wulbu sympatric with C. metallicus at Jabiluka and Jabiru in Kakadu National Park and with C. wulbu at Mount Borradaile, north-west Arnhem Land. 
EtymologyFrom the Latin cygnus, meaning swan, and natus, a son; in reference to Stephen Swanson, herpetological author and photographer. Alludes to the Wells and Wellington (1985) nomen nudum ‘swansoni’. 
  • Cogger, H. G. 2014. Reptiles and Amphibians of Australia, 7th ed. CSIRO Publishing, xxx + 1033 pp.
  • Horner, P. 2007. Systematics of the snake-eyed skinks, Cryptoblepharus Wiegmann (Reptilia: Squamata: Scincidae) - an Australian based review. The Beagle Supplement 3: 21-198
  • Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
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