Acarnidae is a family of sponges belonging to the order Poecilosclerida. It has a global distribution, although several genera occur primarily in colder temperate waters, and several have very restricted ranges. It is estimated that there are several hundred species.

Acarnidae. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Acarnidae.

Acarnus is a genus of sponges belonging to the family Acarnidae. The genus has almost cosmopolitan distribution (except Europe).

Acarnus. Retrieved May, 22 2023, from en.wikipedia.org/wiki/Acarnus.