Rockweed Isopod

Pentidotea wosnesenskii

''Pentidotea wonsnesenskii'' is a marine isopod which lives on seaweed on rocky shores along the British Columbia and Washington coastlines, as far south as San Francisco. It can be as large as 40 millimetres long, is usually green, but its colour is adaptable to its environment. It can often be found hiding under rockweed in the intertidal zone. It is named after the Russian biologist Ilya G. Voznesenskii.
Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassMalacostraca
OrderIsopoda
FamilyIdoteidae
GenusPentidotea
SpeciesP. wosnesenskii