Date & Time : 5, December 2023 07:15
General Characteristics of Ctenophora
Ctenophorans are marine animals.
Classification of Ctenophora
A Few Examples
Habitat-found all over the world, marine and pelagic form.
- Body-transparent, ovoidal, laterally compressed.
- Mouth- located at the oral pole.
- Sense organ- located at aboral pole.
- Locomotory organ- longitudinal comb plates.
- Tentacle- two in number, very long, solid and highly extensile and retractile.
Common name- Venus's girdle.
Habitat- marine and solitary, like to live in warmer seas.
- Body- greatly elongated horizontally and compressed laterally.
- Body color- green, blue and voilet.
- Swimming plates- eigth in number, four are very small while other four are continued along the aboral edge.
Habitat- marine, solitary and planktonic.
- Body-small and nearly circular, flattened dorso-ventrally.
- Length- about 6 mm in diameter.
Habit and habitat- marine and solitary, found in the Red Sea and in Japan.
- Body- oval, elongated in the tentacular plane.
- Mouth- ventrally sotuated.
- Statocyst- present dorsally.
- Tentacles- paired and retractile.
- Fertilized eggs attach to the oral surface of mother.