Land planarian (Artioposthia scaphoidea)

A land flatworm. Thanks to Dr. Leigh Winsor for the ID and expert information.
He writes "An interesting specimen. The species exhibits considerable variation in the dorsal groundcolour. The original specimen described from SE Queensland / northern NSW, was light brown. Other specimens are darker brown; some have a slight greenish-blue cast overlaying the ground colour, and some a more yellowish cast. The basic dorsal, lateral (sometimes faint as in this specimen), and ventral stripe patterns remain constant."
Australopacifica scaphoidea is a synonym.