Decapods

Decapods such as cuttlefish and squid have five pairs.

Systematics Dendrobranchiata were traditionally grouped together with Caridea as "Natantia" (the swimming decapoda), as opposed to the Reptantia (the walking decapods).

The uropods and telson collectively form the tail fan; the uropods are not divided by a diaeresis, as they are in many other decapods.