The medusa is one of the two main body forms found in jellyfish and other members of the phylum Cnidaria. According to the provided reference, it's essentially the typical body plan of a jellyfish.
Understanding the Medusa Form
The medusa form is characterized by its distinctive bell- or umbrella-shaped structure. Key features include:
- Shape: Bell- or umbrella-shaped.
- Manubrium: A stalk-like structure hanging down from the center of the bell.
- Mouth: Located at the tip of the manubrium.
In essence, the medusa is the body form that we commonly associate with jellyfish. It's adapted for a free-swimming, planktonic lifestyle.
