The phylum Cnidaria contains two clades: Anthozoa and Medusozoa. There are around 3800 species within the clade Medusozoa and it consists of Cubozoans, Scyphozoans, … Meer weergeven

Hydroidolina are commonly found in a variety of marine environments across the world such as deepwater caves or brackish and fresh shallow waters, and can exist as solitary or colonial. … Meer weergeven

Hydroidolina are carnivorous suspension feeders. Motile medusa use their cnidocytes and tentacles to capture prey. Meer weergeven

Cnidarians are united by the common characteristic of having a specialized cell called a cnidocyte, which contains an explosive organelle called a cnidocyst, or stinging cell. … Meer weergeven

The Hydroidolina follows a biphasic life cycle, which alternates in occurrence as planula larva, asexual colonial sessile polyps and free-swimming sexual medusa, not all of which may be present in the one life cycle of the Hydroidolina.
Within its … Meer weergeven

Alternate classifications
Other hydrozoan classifications, which are beset by paraphyly however, are still often seen. They … Meer weergeven

The complexity of fauna environments in shallow and deep waters is only increased by benthic polyp colonization. These hydroid colonies affect many spatial and temporal settlement patterns of other benthic species due to providing a habitat for a wide … Meer weergeven