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The new species — the Elegant Rainbow Skink (Carlia decora), the Orange-flanked Rainbow Skink (Carlia rubigo), and the Whitsunday Rainbow Skink (Carlia inconnexa) — are described in the journal Zootaxa. The species were identified after careful study of the widely distributed Open-litter Rainbow Skink (Carlia pectoralis). Genetic analysis and morphology work showed the lizard to be comprised of several species.
“It just goes to show that we still haven’t discovered all the diversity that’s out there, even in a fairly well known group like lizards in a fairly well studied area like eastern Australia,” said Conrad Hoskin of James Cook University. “More and more we are finding that species we thought were widespread in eastern and tropical Australia are in fact composed of multiple species that have been overlooked because they look approximately similar. It’s only when we look in detail that we find that there are very interesting new species hidden in there.”
Hoskin co-authored the new lizard descriptions with Patrick Couper from the Queensland Museum.
The species are notable for their coloration.
“The species names are in reference to the bright colors sported by breeding males of each species; ‘decora’ means ‘beautiful’ in Latin, with males of that species marked with vivid orange and blue, while ‘rubigo’ translates to ‘rust’, referring to the rusty orange color of males of that species,” said Hoskin. The Whitsunday Rainbow Skink's scientific name, ‘inconnexa’ or ‘unjoined’ if reference to its isolation on several islands off the coast of Eastern Australia.
The new species are common within their habitats and are not considered at-risk.
CITATION: CONRAD J. HOSKIN & PATRICK J. COUPER. Description of two new Carlia species (Reptilia: Scincidae) from north-east Australia, elevation of Carlia pectoralis inconnexa Ingram & Covacevich 1989 to full species status, and redescription of Carlia pectoralis (de Vis 1884). ZooTaxa published: 12 Nov. 2012
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