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Asteroid Barnacle harpacticoid copepod
Amphipods
Sand Fleas
Cirripeds
Barnacles
Cumacean Crab Synidothea bicuspida
Cumaceans
Decapods
Crabs, Shrimps, Lobsters
Isopods
Mysid   Sea Spider

Mysids
Opossum shrimp

Ostracods
Clam Shrimps
Pyconogonids
Sea Spiders
Tanaid
Tanaids    

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Arthropods - Crustaceans & Sea-spiders

Main image

What’s here?

This section provides images and background on the major groups of arthropods (joint-legged animals) that call the seafloor their home. It is intended to be primarily visual, and provide brief detail, natural history, and known distribution of species.

The vast majority of marine arthropods are within a group called the crustaceans for which ~1600 bottom-dwelling species are recognized in the Arctic. Thus, about 25% of all arctic benthic species are crustaceans. The second group - the pycnognids or sea-spiders - are actually more closely related to the spiders and scorpians we find on land than the crustaceans, and are represented by only 35 species in the Arctic.

Page Author: Russ Hopcroft
Created: July 27, 2010

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