Terrestrial crustacean

6684.      Found in the basement. Less than half an inch. Edmonton, Alberta. Canada

 

Number 6684.  This is a terrestrial crustacean in the order Isopoda. They go by a variety of common names, including sowbugs, pillbugs, slaters, woodlice, and roly polys. They are harmless scavengers on decomposing organic matter, but occasionally become nuisance pests when they occur indoors in large numbers.