eguruchela

The phylum :Coelenterata


They are typically invertebrate aquatic animals, which show a very simple level tissue organisation. They are mostly found in marine environments, attached to the rocks at the bottom of the ocean. Some of species are also found in freshwater habitats. Coelenterates can be found solitarily or in colonies.

Organization Level : Tissue

Symmetry : Radial

Coelom : Absent

Respiratory system : Absent

Digestive system : Incomplete

Circulatory System : Absent

Classification of Coelenterata

AnthozoaHydrozoaScyphozoa
Sycon Hydrozoa Scyphozoa
Exclusively in the marine environment. Mesogloea contains fibrous connective tissues and amoeboid cells. Medusa is not present. These are mostly marine species, exclusively in freshwater. Few are found in colonies and solitarily. Asexual Polyps is the dominant form. Mesogloea is acellular. Exclusively in the marine environment. Medusa is dominant and umbrella-shaped. Polyps are not present. Mesogloea is cellular.
Metridium, XeniaHydra, ObeliaAurelia aurita, Rhizostoma