reptantia การใช้

The Reptantia or walkers included the crabs and lobsters.
Traditionally decapods were divided into two suborders : The Natantia or swimmers, and the Reptantia or walkers.
Historically, it was the distinction between walking and swimming that formed the primary taxonomic division into the former suborders Natantia and Reptantia.
The Polystilifera are further divided in two taxa, one ( Pelagica ) containing the pelagic species, and the other ( Reptantia ) with crawling or burrowing forms.
Members of the Natantia ( shrimp in the broader sense ) were adapted for swimming while the Reptantia ( crabs, lobsters, etc . ) were adapted for crawling or walking.