Crabs (Decapoda) also commonly known as Crayfishes, Lobsters, Prawns or Shrimp, is a biological order of the phylum Arthropoda (Arthropods) and class Malacostraca.
Glyphocrangonidae
Benthesicymidae
Polychelidae
Calappidae
Homolidae
Nephropidae
Carpiliidae
Trapeziidae
Stenopodidae
Cambaridae
Astacidae
Geryonidae
Oplophoridae
Parapaguridae
Parthenopidae
Ocypodidae
Raninidae
Palinuridae
Cryptochiridae
Aristeidae
Callianassidae
Pasiphaeidae
Spongicolidae
Cheiragonidae
Rhynchocinetidae
Atelecyclidae
Lithodidae
Gecarcinidae
Coenobitidae
Diogenidae
Axiidae
Ogyrididae
Latreilliidae
Grapsidae
Panopeidae
Upogebiidae
Processidae
Pinnotheridae
Xanthidae
Penaeidae
Porcellanidae
Leucosiidae
Paguridae
Cancridae
Sicyoniidae
Hippidae
Albuneidae
Psalidopodidae
Scyllaridae
Alpheidae
Solenoceridae
Majidae
Blepharipodidae
Dromiidae
Galatheidae
Palicidae
Dorippidae
Portunidae
Tychidae
Amphipoda
Decapoda
Cumacea
Isopoda
Euphausiacea
Lophogastrida
Stomatopoda
Mysida
Tanaidacea