Cordylophora caspia (Ponto Caspian Freshwater Hydroid) is a species of cnidarians in the family Cordylophoridae. They are associated with freshwater habitat. They are native to Caspian Sea.
Definition: The marine benthic biome (benthic meaning 'bottom') encompasses the seafloor and includes such areas as shores, littoral or intertidal areas, marine coral reefs, and the deep seabed.