Superorder
Eucarida (Decapods and krill)
Romaleon antennarium. Photo: (c) Donna Pomeroy, some rights reserved (CC BY-NC)
Eucarida is a superorder of the Malacostraca, a class of the crustacean subphylum, comprising the decapods, krill and Amphionides. They are characterised by having the carapace fused to all thoracic segments, and by the possession of stalked eyes.