Malacostraca

The main order in this class of interest to hobbyists is Isopoda. Therefore, this page will focus on isopods.

Species Native to the Continental US

Species that are indigenous to the Continental US do not require USDA permits for interstate movement, however, most well-known isopod species are actually naturalized. This includes the ubiquitous Porcellio and Armadillidium species.

Naturalized Species and Exotic Species in the Continental US

All non-indigenous species of isopod require a USDA permit for interstate movement. There are fourteen species that are permitted without a containment facility. The list is below.