A New Angle-Headed Dragon (Agamidae: Gonocephalus) from Montane Forests of the Southern Bukit Barisan Range of Sumatra

Michael B. Harvey; Inna Rech; Awal Riyanto; Nia Kurniawan; Eric N. Smith

doi:10.1655/HERPETOLOGICA-D-20-00044.1

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19 March 2021 A New Angle-Headed Dragon (Agamidae: Gonocephalus) from Montane Forests of the Southern Bukit Barisan Range of Sumatra

Michael B. Harvey, Inna Rech, Awal Riyanto, Nia Kurniawan, Eric N. Smith

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Herpetologica, 77(1):94-109 (2021). https://doi.org/10.1655/HERPETOLOGICA-D-20-00044.1

Abstract

We describe a new species of the Gonocephalus megalepis group and provide new morphological and distribution data for the three other species of the group. The combination of a wide gap between the nuchal and dorsal crests, distinctly heterogenous scales on the flanks, a gular crest, two large tubercular scales ventral to the tympanum, and 97–125 scales around midbody will distinguish the new species from all congeners. The new species occurs above 1100 m on mountains of Sumatra's southern Bukit Barisan Range below 3°S latitude. Head scales of some specimens were infested by a green, filamentous symbiont, which we tentatively identify as an epizoic plant. Gravid females develop crimson stripes on their gular pouch as an apparent social signal.

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Michael B. Harvey, Inna Rech, Awal Riyanto, Nia Kurniawan, and Eric N. Smith "A New Angle-Headed Dragon (Agamidae: Gonocephalus) from Montane Forests of the Southern Bukit Barisan Range of Sumatra," Herpetologica 77(1), 94-109, (19 March 2021). https://doi.org/10.1655/HERPETOLOGICA-D-20-00044.1

Accepted: 26 October 2020; Published: 19 March 2021

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