Class Malacostraca
(crabs, krill, pill bugs, shrimp, and relatives)

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Scientific names for Aves taxonomy (family and below) are from The Howard and Moore Complete Checklist of the Birds of the World, Princeton University Press, copyright 2003. Used by permission.

• Parent taxa
  
  
  
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  Subphylum Crustacea (crustaceans)
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  Class Malacostraca (crabs, krill, pill bugs, shrimp, and relatives)
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  Subclass Eumalacostraca
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  Superorder Eucarida
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  Order Amphionidacea
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  Order Decapoda (crabs, shrimp, and relatives)
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  Order Euphausiacea (krill)
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  Superorder Pancarida
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  Superorder Peracarida
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  Order Amphipoda (amphipods)
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  Order Cumacea (cumaceans)
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  Order Isopoda (pillbugs and sowbugs)
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  Order Lophogastrida
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  Order Mysida
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  Order Spelaeogriphacea
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  Order Tanaidacea (tanaidaceans)
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  Order Thermosbaenacea
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  Superorder Syncarida
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  Order Anaspidacea
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  Subclass Hoplocarida
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  Order Stomatopoda (mantis shrimp)
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  Subclass Phyllocarida
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  Order Leptostraca