In this article we will discuss about the structure of sea-anemone (adamsia) with the help of a diagram. 1. It is commonly called sea-anemone and is a marine commensal which is frequently seen attached to empty gastropod shells in which hermit crabs (Eupagurus prideauxi) live. 2. In this example of commensalism both sea-anemone and hermit crab exhibit physiological treaty. The [...]
In this article we will discuss about the structure of Aurelia with the help of a diagram. 1. It is a cosmopolitan jelly fish which is found in coastal waters. 2. The adults are exclusively medusoia forms. 3. The polyp is represented by schyphistoma and hydra tuba stages. 4. The body is like an inverted bowl or umbrella and is [...]
In this article we will discuss about the structure of Gorgonia with the help of a diagram. Fig. 172 GORGONIA 1. It is the dried skeleton of a colonial coral and is commonly known as "sea fan", which is found off the coasts of West Indies, South Atlantic and also off the Madras coasts. 2. The colony is dimorphic, grows [...]