22110 - fish, seafood, amphibians, reptiles and invertebrates (efsa foodex2) 24830 - crustaceans (efsa foodex2) The group includes any type of Crustacean (ISSCAAP division 4). Crustaceans are aquatic animals of various species, wild or cultivated, which have an inedible chitinous outer shell. A small number of species live in fresh water, but most species live in brackish water and/or in the sea. Crustaceans are prepared for wholesale or retail distribution at a "raw" stage, often still live, "raw" and deep-frozen, or cooked directly after catching and deep-frozen. Shrimps or prawns may also be parboiled and thereafter deep-frozen. The part consumed/analysed is by default the whole or a portion of it representing the observed heterogeneity. ] and [https://en.wikipedia.org/wiki/Crustaceans] and [https://www.google.co.uk/search?tbm=isch&q=Crustaceans] requires discussion