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Amphipoda include over 7000 described species of small, shrimp-like crustaceans. Most amphipods are marine, although a few live in freshwater or are terrestrial.

Amphipod

Amphipoda include over 7000 described species of small, shrimp-like crustaceans. Most amphipods are…

"An Amphipod (Caprella linearis). The two anterior thoracic segments are fused to the head; he abdomen is greatly reduced and without appendages; the fourth and fifth thoracic segments bear only respiratory plates." -Thomson, 1916

Amphipod

"An Amphipod (Caprella linearis). The two anterior thoracic segments are fused to the head; he abdomen…

The amphipod, Caprella geometrica.

Caprella Geometrica

The amphipod, Caprella geometrica.

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are parasitic upon fishes. Gammarus is an amphipod crustacean genus in the family Gammaridae.

Marine Isopod

The marine isopod or sand flea (Gammarus) is in the sand, under rocks, and in the seaweed. Many are…

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants, small invertebrates. It is preyed upon by shrimp, sea anemones and several fish species. Females of some species of skeleton shrimp apparently kill the males after mating using a poisonous claw.

Marine Isopod

The marine isopod or sand flea (Caprella) is an omnivorous feeder that eats detritus, one-celled plants,…

The amphipod, Gammarus ornatus.

Gammarus Ornatus

The amphipod, Gammarus ornatus.

The Freswater Shrimp (Gammarus pulex) is an amphipod in the Gammaridae family of scuds.

Freshwater Shrimp

The Freswater Shrimp (Gammarus pulex) is an amphipod in the Gammaridae family of scuds.