Lucasium occultum (KING, 1982)

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Higher Taxa	Diplodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies
Common Names	E: Alligator River Gecko
Synonym	Diplodactylus occultus KING et al. 1982 Turnerdactylus occultus — WELLS & WELLINGTON 1989 Diplodactylus occultus —KLUGE 1993 Diplodactylus occultus — COGGER 2000: 222 Lucasium occultum — OLIVER et al. 2007 Lucasium occultum — COGGER 2014: 312
Distribution	Australia (N Northern Territory, Alligator Rivers Region)
Reproduction	oviparous
Types	Holotype: ANWC R3436, adult male
Diagnosis	Diagnosis: A small, relatively erect, terrestrial gekko with a long, thin body and a tapered, round tail. Limbs are of moderate length with long thin toes. The deep, short-snouted head and body have a very characteristic colour pattern (Fig. 1a). Diplodactylus occultus sp. nov. is most similar in its morphological characteristics to the species of the D. stenodactylus complex (sensu Kluge 1967). This complex includes D. stenodactylus Boulenger, D. maini Kluge, D. damaeus (Lucas & Frost), D. alboguttatus Werner, D. squarrosus Kluge, D. fulleri Storr and D. wombeyi Storr. D. occultus is distinguished from the above by its unusual back pattern and colouration. It is also distinguished by its subdigital lamellae which are generally rectangular follewing two moderately dilated subapical plates. Other stenodacty/us group species generally have small granular subdigital lamellae. (King 1982) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 3342 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Group: Diplodactylus stenodactylus group.
Etymology	Named from the Latin occultus (hidden), and alludes to the species' use of a habitat with a dense understory. (G. Shea, pers. comm., 9 Feb 2024)
References	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. Jolly, C., Schembri, B., & Macdonald, S. 2023. Field Guide to the Reptiles of the Northern Territory. CSIRO Publishing, Melbourne - get paper here King, M., R. W. Braithwaite, and J. C. Wombey 1982. A new species of Diplodactylus (Reptilia: Gekkonidae) from the Alligator Rivers region, Northern Territory. Transactions of the Royal Society of South Australia 106: 15—18. - get paper here Oliver, Paul M.; Hutchinson, Mark N.; Cooper, Steven J.B. 2007. Phylogenetic relationships in the lizard genus Diplodactylus Gray and resurrection of Lucasium Wermuth (Gekkota, Diplodactylidae). Australian Journal of Zoology 55( 3):197-210 - get paper here Wilson, S. & Swan, G. 2010. A complete guide to reptiles of Australia, 3rd ed. Chatswood: New Holland, 558 pp.
External links	IUCN Red List http://www.amonline.net.au/herpetology/research/pdf/gekkonidae.pdf http://www.publish.csiro.au/nid/90/paper/ZO07008.htm http://www.arod.com.au/arod/reptilia/Squamata/Gekkonidae/Lucasium/occultum Google images

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