epifauna because they live on the bottom not within the sediments (infauna)
Infauna are organisms that inhabit the substrate of aquatic environments, such as the ocean floor or riverbeds, living within the sediment. Examples include clams, worms, and certain types of crustaceans. In contrast, epifauna are organisms that live on the surface of the substrate or attached to other surfaces, such as rocks or plants. Examples of epifauna include sea stars, barnacles, and various types of algae.
New Zealand pea crab was created in 1886.
pea crab
no they always have a pea.
Benthos is a term for bottom-dwelling (i.e. on, in, or very near) organisms because they live on the seabed (what is known as the "benthic zone"). There are different classifications though: the epifauna live on the sea bottom and infauna live in the sediments on the sea bottom.
Pea crabs in the family Pinnotheridae are about .25 inches across the shell
Terms used usually to describe the living condition of shell fish like the Molluscs and Brachipods. Infaunal meaning a shellfish, usually with a smooth shell, that burrows within sediment(burrower) Epifaunal meaning a shellfish usually spined that lives above the ground(non-burrower)
Hermit Crab, turtle, and clam fit this analogy.
Clams
Benthic animals that lives on rocks, marine vegetation.
Aquatic animals that live in thesubstrateof a body of water.
In an aquarium full of dead fish or in the dead sea :)