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{{short description|Species of reptile
{{for|other species sometimes known as blue-tailed skink|Blue-tailed skink (disambiguation)}}
{{Use dmy dates|date=July 2019}}
{{Speciesbox
| name = Christmas Island blue-tailed shining-skink
| image = N388 w1150.jpg
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| status = EW
| status_system = IUCN3.1
| status_ref =<ref name="iucn status 18 November 2021">{{cite iucn |author=Woinarski, J.C.Z. |author-link=species:John C.Z. Woinarski |author2=Cogger, H. |author2-link=Harold Cogger |author3=Mitchell, N.M. |author4=Emery, J. |author4-link=species:Jon-Paul Emery |date=2017 |title=''Cryptoblepharus egeriae'' |volume=2017 |page=e.T102327291A102327566 |doi=10.2305/IUCN.UK.2017-3.RLTS.T102327291A102327566.en |access-date=18 November 2021}}</ref>
| genus = Cryptoblepharus
| species = egeriae
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*''Ablepharus boutonii egeriae'' <br>{{small|— [[Robert Mertens|Mertens]], 1931}}
*''Cryptoblepharus egeriae'' <br>{{small|— [[:fr:Allan Eddy Greer|Greer]], 1974}}
| synonyms_ref =<ref>
}}
'''''Cryptoblepharus egeriae''''', also known [[Common name|commonly]] as the '''blue-tailed shinning-skink''', the '''Christmas Island blue-tailed shinning-skink''', and the '''Christmas Island blue-tailed skink''', is a [[species]] of [[lizard]] in the [[Family (biology)|family]] [[Scincidae]]
==Etymology==
The [[Specific name (zoology)|specific name]], ''egeriae'', is in honor of [[HMS Egeria (1873)|HMS ''Egeria'']].<ref name=":4">[[species:Bo Beolens|Beolens, Bo]]; [[species:Michael Watkins|Watkins, Michael]]; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. {{ISBN|978-1-4214-0135-5}}. (''Cryptoblepharus egeriae'', p. 81).</ref>
== Description ==
The Christmas
==Diet==
The Christmas Island blue-tailed skink is a forager known as an [[insectivore]].<ref name=":2" />
== Reproduction ==
For the Christmas Island blue-tailed skink,
== Distribution ==
The threat of extinction is largely attributed to introductions of invasive species, including a predatory wolf snake and the yellow crazy ant which were unintentionally brought to the island in the 1980s.<ref name=":0" /> The Christmas Island blue-tailed skink is now extinct in the wild. However, [[Taronga Zoo]] currently has an active breeding program hosted by [[Taronga Conservation Society]], which originated from 66 skinks that were brought into captivity before their population was wiped out.<ref name=":3" /> The breeding program has been running for over a decade, with the goal of releasing some of the skinks back into their native habitat.<ref name=":3" /> Since the Taronga Conservation Society conservation efforts began, 300 skinks have been introduced to the [[Cocos (Keeling) Islands|Cocos Islands]].<ref name=":3" />
The genome of the blue-tailed skink (along with the [[Lepidodactylus listeri|Lister's gecko]]) was sequenced in 2022, marking the first high quality skink reference genome.<ref name=":6">{{Cite journal |last1=Dodge |first1=Tristram O. |last2=Farquharson |first2=Katherine A. |last3=Ford |first3=Claire |last4=Cavanagh |first4=Lisa |last5=Schubert |first5=Kristen |last6=Schumer |first6=Molly |last7=Belov |first7=Katherine |last8=Hogg |first8=Carolyn J. |date=2023 |title=Genomes of two Extinct‐in‐the‐Wild reptiles from Christmas Island reveal distinct evolutionary histories and conservation insights |url=https://onlinelibrary.wiley.com/doi/10.1111/1755-0998.13780 |journal=Molecular Ecology Resources |language=en |pages=1755–0998.13780 |doi=10.1111/1755-0998.13780 |pmid=36872490 |s2cid=257363487 |issn=1755-098X|doi-access=free }}</ref> Analysis of this genome revealed high genetic diversity, reflective of large historical population sizes. However, regions of the genome also showed signs of recent inbreeding, likely because skinks used to found the captive population were somewhat related.<ref name=":6" />
▲== Conservation Efforts ==
== Evolutionary relationships ==
''C. egeriae'' is most closely related to the [[Cryptoblepharus metallicus|''metallicus'']] group of ''[[Cryptoblepharus]],'' native to Australia, with the estimated divergence of ''C. egeriae'' from the group taking place around
== See also ==
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==References==
{{Reflist}}
{{Taxonbar|from=Q3005807}}
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