Decapoda

:Dendrobranchiata

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:Pleocyemata

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Caridea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Stenopodidea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

::Reptantia, comprising:

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Eryonoidea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Achelata

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Astacidea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Glypheidea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Thalassinidea

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Anomala

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

:::Brachyura

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

The decapods or Decapoda are a group of crustaceans within the class Malacostraca, including many familiar groups of crustaceans, such as crabs, lobsters and shrimp, but also some families that are less well known.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Crustacean: Class Branchiopoda...

Crab: DromiaceaRaninoidaHeterotremataThoracotremataThe term crab is often applied to several different groups of short (nose to tail) decapods with thick exoskeletons, but only members of the Brachyura are true crabs; other taxa, such as hermit crabs, porcelain crabs, king crabs, and horseshoe crabs are,...

Shrimp: Alpheoidea...