(from Gibson, R. (2002). The invertebrate fauna of New Zealand: Nemertea (ribbon worms).. Jan-89.)
Typically 30-80 mm long, 2-3 mm in diameter, with dorsal surface marked by 2 very broad dark chocolate-brown longitudinal stripes, commencing behind the head, separated by a narrow cream median line. Ventral surface cream without markings, the head also pale but may be somewhat darker anterodorsally. On head usually 4 small eyes, the posterior pair smaller, sometimes doubled. Individuals living in fully terrestrial conditions tend to be uniformly light grey, without the 2 longitudinal stripes.
