[2][6] Another distinguishing feature is that its pleon curve outwards, causing a splayed appearance.

Otherwise, the appearance of A. depressum is very similar to A. vulgare in dark grey to black color.

[2] Like other woodlice, Armadillidium depressum feeds on dead plant matter, and lives for 3 years.

[5] The majority of specimens of Armadillidium depressum are concentrated in southwest Britain, near the English Channel, but small populations also occur in various towns scattered throughout England.

[2] It is a synanthropic species, living on walls and under stones in towns and old houses.