Rodrigues giant day gecko

Rodrigues giant day gecko
Conservation status
	; Extinct (1841) (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Family:	Gekkonidae
Genus:	Phelsuma
Species:	†P. gigas
Binomial name
	†Phelsuma gigas; (Liénard, 1842)
Synonyms
	Gecko gigas Liénard, 1842; Gekko newtoni Günther, 1877; Phelsuma gigas — Kluge, 1993;

The Rodrigues giant day gecko (Phelsuma gigas) is an extinct species of day gecko. It lived on the island of Rodrigues and surrounding islands and typically dwelt on trees. The Rodrigues giant day gecko fed on insects and nectar, and, unlike most other day geckos, was apparently nocturnal in habit.

Description

Phelsuma gigas was one of the largest known geckos.^[3] It reached a total length of about 40 centimetres (16 in). The body colour was grayish or grayish brown. On the back there were irregular black spottings. The tail had some striping and was charcoal- or dark grey-coloured. The tongue had a pink colour and the ventral side of the body was light yellow. The original collected specimens that were used to describe this species have been lost. Today, only a few portions of some skeletons remain.

Behaviour

Leguat described the species:

There's another sort of nocturnal lizard of grayish colour, and (very) ugly; they are as big and as long as one's arm, their flesh is not bad, they love (being on) plantanes (latan palms).^[4]

Distribution

This species inhabited Rodrigues and surrounding islands. P. gigas was last collected in 1842 on the offshore islet of Ile aux Fregates.

Habitat

P. gigas was an arboreal lizard living on trees within the forests of Rodrigues. P. gigas became extinct due to human-induced deforestation and predation by introduced cats and rats.

Diet

These day geckos fed on various insects and other invertebrates. As observed in other species of day geckos, it was assumed that P. gigas also liked to lick at soft, sweet fruit, pollen and nectar.

References

^ Cole, N. 2021. Phelsuma gigas. The IUCN Red List of Threatened Species 2021: e.T16925A166929864. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T16925A166929864.en. Accessed on 17 April 2023.
^ "Phelsuma gigas ". The Reptile Database. www.reptile-database.org.
^ Gunther, A. (1879). "The Extinct Reptiles of Rodriguez". Philosophical Transactions of the Royal Society of London. 168: 452–456. Bibcode:1879RSPT..168..452G. doi:10.1098/rstl.1879.0045. S2CID 109921782.
^ Cheke, A. S.; Hume, J. P. (2008). Lost Land of the Dodo: an Ecological History of Mauritius, Réunion & Rodrigues. New Haven and London: T. & A. D. Poyser. ISBN 978-0-7136-6544-4.

Günther (1877) Journal of the Linnean Society, Zoology, 13:322-327
Liénard (1842) Rapport de la Société d'Histoire Naturelle de Maurice, (13):55-57
McKeown, Sean (1993) The general care and maintenance of day geckos. Advanced Vivarium Systems, Lakeside CA.
World Conservation Monitoring Centre (1996). "Phelsuma gigas". The IUCN Red List of Threatened Species. 1996. IUCN: e.T16925A6598516. doi:10.2305/IUCN.UK.1996.RLTS.T16925A6598516.en. Retrieved 9 January 2018. Database entry includes a brief justification of why this species is listed as extinct

[1] Cole, N. 2021. Phelsuma gigas. The IUCN Red List of Threatened Species 2021: e.T16925A166929864. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T16925A166929864.en. Accessed on 17 April 2023.

[2] "Phelsuma gigas ". The Reptile Database. www.reptile-database.org.

[3] Gunther, A. (1879). "The Extinct Reptiles of Rodriguez". Philosophical Transactions of the Royal Society of London. 168: 452–456. Bibcode:1879RSPT..168..452G. doi:10.1098/rstl.1879.0045. S2CID 109921782.

[Lost_Land-4] Cheke, A. S.; Hume, J. P. (2008). Lost Land of the Dodo: an Ecological History of Mauritius, Réunion & Rodrigues. New Haven and London: T. & A. D. Poyser. ISBN 978-0-7136-6544-4.

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