Phylum Arthropoda: crabs, shrimps, barnacles, spiders, insects,... ; marine, freshwater, and terrestrial species; exoskeleton characteristic present in this phylum...

Subphylum Crustacea: crabs, shrimp, barnacles, sea mites, amphipods...

Class Malacostraca: crabs, shrimp

Chionoecetes bairdi

Elassochirus gilli

Eualus suckleyi

Gnorimosphaeroma oregeries

Hyas lyratus

Idotea wosnesenskii

Maera danae

Pagurus hirustiusculus

Pandalus goniurus

Pandalus platyceros

Spinulogammarus subcarinatus

Class Maxillopoda: barnacles

Balanus glandula

Semibalanus cariosus

Subphylum Cheliceriformes: spiders

Class Arachnida

Halobisium occidentale