Distribution: Recorded between Elliston and Cape Jervis, but likely statewide.
Habitat: Seagrass beds on seagrass blades
Depth: Lower intertidal to 10+ metres
One of the most elongated species of chiton globally, this species is well-adapted to its habitat on the blades and root sheaths of Posidonia seagrass. It is usually hidden below the sand during the day, but climbs up the seagrass blade at night to feed on epiphytic algae. It can be variable, but is usually dark in colour, with a pale girdle and white broken dorsal stripe. It is most similar to Stenochiton pilsbryanus, with which it shares host species, but is darker and more elongate.
