1) Animal order 2) Shrimp 3) Suborder natantia 
Natantia (Boas, 1880) is an obsolete taxon of decapod crustaceans, comprising those families that move predominantly by swimming – the shrimp (comprising Caridea and Procarididea), prawns (Dendrobranchiata) and boxer shrimp. The remaining Decapoda were placed in the Reptantia, and consisted of crabs, lobsters and other large animals that move ch...
[n] - shrimp
suborder Natantia noun shrimp; prawns; etc.