Appearance
A typical example of this species comprises a dark grey to dark brown dorsum and a cream underside. Numerous faint grey or brown bands occur in the central, thickest part of the body which is laterally compressed. In juveniles the dorsum is pale brown, and the banding is more apparent.The head is blunt, the snout rounded, and the eyes large with a reddish-brown iris.
Distribution
The species occurs in the main mountain range of Peninsular Malaysia, which runs like a spine throughout the length of much of the country, and also on Pulau Tioman, off the east coast of Pahang state.A recently described and related species, A. lasgalenensis (Loredo et al, 2013), also occurs in highland areas of Peninsular Malaysia, but lacks banding and is mainly arboreal.
Behavior
This is a nocturnal species, and is predominantly terrestrial, though it may climb a few metres from the ground in search of protection or prey. Slug snakes feed on snails and slugs, but little more is known of the detailed ecology of this highly localised species.References:
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http://www.ecologyasia.com/verts/snakes/mountain-slug-snake.htm