Yup! You’ll be happy to know, though, that amphibians (class Amphibia), mammals (class Mammalia), birds (class Avia), and reptiles (class Reptilia) all have their own pigeonholes.

What you won’t be happy to know is that a lot of things that are called “shrimp” aren’t actually shrimp. Shrimp are specifically the decapod infraorder Caridea. Anything else – presented in order of decreasing relatedness – like prawns (decapod suborder Dendrobranchiata), amphipods (order Amphipoda), or mantis shrimp (order Stomatopoda) are not shrimp.