Image Key > Malacostraca

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Hoplocarida Mantis Shrimps	Peracarida Amphipods, Isopods, Mysids	Decapoda Decapods	Euphausiacea Krill
Crustacean nauplii

• Variable

• The largest class of crustaceans and includes the decapods (crabs, lobsters, shrimps), stomatopods (mantis shrimp), euphausiids (krill), amphipods and isopods.

• The head has 6 segments.
• Possess antennules, antennae and mouth parts.
• Usually have 8 pairs of thoracic legs and 8 thoracic segments.
• Possess compound stalked or sessile eyes.

• Worldwide