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

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...