Plague skink other 2

Diagram of the differences in head scale on native (left) and plague (right) skink heads.

Plague skinks have one large scale on the top of their head, whereas New Zealand native skinks have two smaller scales Diagram shows this head scale, known as the fronto-parietal head scale, on native (left) and plague (right) skink heads.

Diagram: by Tony Whitaker, Department of Conservation