English: Jellyfishes and Hydrozoans.
Clades:
Cnidaria;
Radiata;
Animals.
Genera: 50 species.
Region: antitropical, boreal or polar; Northern Hemisphere.
Habitat: marine environments, usually attached to seaweeds, rocks, or gravel; near-shore, and shallow waters.
ZoologyStaurozoans are small animals, 1 to 4 cm.