Tuesday, April 14, 2020

A new gecko: Cyrtodactylus phnomchiensis

Geckos have a number of unique features that distinguish them from other lizards. They use sounds in social interactions with other geckos. They lack eyelids which is why they often lick their eyes to keep them clean and moist. However, they are probably best known for their specialized toe pads that enable them to climb smooth and vertical surfaces, and even cross indoor ceilings with ease.

This new species was collected in Cambodia at Phnom Chi (a mountain) in the Prey Lang Wildlife Sanctuary, Kampong Thom Province, hence the name Cyrtodactylus phnomchiensis.

For the experts: Cyrtodactylus phnomchiensis sp. nov. is described from Phnom Chi, an isolated mountain in Prey Lang Wildlife Sanctuary, Kampong Thom Province, Cambodia. The new species is recognized by having a unique combination of morphological characters, including snout-vent length 76.1–80.7 mm; paravertebral tubercles 31–36; ventral scales 45–54; enlarged femoral scales 0–8, without pores; enlarged precloacal scales 7–10, bearing pores 4–5 in males, pits 1–7 in females; the posterior border of nuchal loop unbroken and pointed, bordered anteriorly and posteriorly by a broad yellow or yellowish white band; and yellow spots on top of head. The new species also represents a divergent mitochondrial DNA lineage within the C. irregularis complex that is closely related to C. ziegleri, but the phylogenetic relationships among the new species and two divergent mitochondrial subclades within C. ziegleri are not resolved based on available sequence data. Cyrtodactylus phnomchiensis sp. nov. is the only member of the C. irregularis complex known to occur west of the Mekong River. The new species may be endemic to Phnom Chi, and likely faces imminent conservation threats.

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