#decapod_crustacean__decapodcrustacean__decapod  crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax
  supertype:  crustacean  any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
  member of:  Decapoda
  subtype:  crab  decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
     subtype:  Menippe_mercenaria__stone_crab__stonecrab  large edible crab of S coat of United States especially Florida
     subtype:  hard-shell_crab  edible crab that has not recently molted and so has a hard shell
     subtype:  soft-shell_crab__soft-shelled_crab  edible crab that has recently molted and not yet formed its new shell
     subtype:  Cancer_magister__Dungeness_crab  small edible crab of Pacific coast of North America
     subtype:  rock_crab__Cancer_irroratus  crab of eastern coast of North America
     subtype:  Jonah_crab__Cancer_borealis  large red deep-water crab of the eastern coast of North America
     subtype:  swimming_crab  marine crab with some legs flattened and fringed for swimming
        subtype:  English_lady_crab__Portunus_puber  crab of the English coasts
        subtype:  American_lady_crab__lady_crab__calico_crab__Ovalipes_ocellatus  brightly spotted crab of sandy beaches of the United States Atlantic coast
        subtype:  Callinectes_sapidus__blue_crab  bluish edible crab of Atlantic and Gulf coasts of North America
     subtype:  fiddler_crab__fiddlercrab  burrowing crab of American coastal regions having one claw much enlarged in the male
     subtype:  pea_crab__peacrab  tiny soft-bodied crab living commensally in the mantles of certain bivalve mollusks
        subtype:  oyster_crab__Pinnotheres_ostreum  tiny soft-bodied crab living within the mantle cavity of oysters
     subtype:  Paralithodes_camtschatica__king_crab__Alaska_crab__Alaskan_king_crab__Alaska_king_crab  large edible crab of North Pacific waters especially along the coasts of Alaska and Japan
     subtype:  spider_crab  any of numerous crabs with very long legs and small triangular bodies
        subtype:  European_spider_crab__king_crab__Maja_squinado  large European spider crab
        subtype:  giant_crab__giantcrab__Macrocheira_kaempferi  very large deep-water Japanese crab
  subtype:  lobster  any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae
     subtype:  true_lobster  large edible marine crustaceans having large pincers on the first pair of legs
        subtype:  Homarus_americanus__American_lobster__Northern_lobster__Maine_lobster  lobster of Atlantic coast of America
        subtype:  Homarus_vulgaris__European_lobster  lobster of Atlantic coast of Europe
        subtype:  Cape_lobster__Homarus_capensis  small lobster of southern Africa
     subtype:  Norway_lobster__Nephrops_norvegicus  edible European lobster resembling the American lobster but slenderer
     subtype:  crawfish__spiny_lobster__spinylobster__langouste__rock_lobster__crayfish__sea_crawfish__seacrawfish  large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
  subtype:  crawdaddy__crayfish__crawfish__crawdad  small freshwater decapod crustacean that resembles a lobster
     subtype:  Old_World_crayfish__ecrevisse  small crayfish of Europe and Asia and western North America
     subtype:  American_crayfish  common large crayfishes of eastern North America
  subtype:  hermit_crab  small soft-bodied marine crustaceans living in cast-off shells of gastropods
  subtype:  shrimp  small slender-bodied chiefly marine decapod crustaceans with a long tail and single pair of pincers; many species are edible
     subtype:  snapping_shrimp__pistol_shrimp  small shrimp that makes a snapping noise with one of their enlarged chelae
  subtype:  prawn  shrimp-like decapod crustacean having two pairs of pincers; most are edible
     subtype:  long-clawed_prawn__river_prawn__Palaemon_australis  large (a foot or more) edible freshwater prawn common in Australian rivers
  subtype:  tropical_prawn  edible tropical and warm-water prawn

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