from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Aquatic animals, such as starfish, flounder, or barnacles, that live on the surface of a sea or lake bottom or on the surface of a submerged substrate, such as rocks or aquatic plants and animals, but that do not burrow into or beneath the surface.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
faunacharacterized by members whose typical life sites are on the outer surfaceof their environment, as opposed to withinit, e.g. animalsliving on top of the sedimentat the seafloor.
Sorry, no etymologies found.
This species is found in high densities along with a very rich epifauna, including a high diversity of sponges.