Other Common Names
cressbug, pillbug, sowbug, woodlouse, rock slater, roly-poly
2 to >300 mm (Bathynomus, a deep sea genus)
Worldwide, from the deep sea to terrestrial habitats.
Pillbugs and sowbugs, being crustaceans, breathe by means of gills. This is why they need moisture, but they will drown if submerged