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 [...]
In this article we will discuss about the structure of Valella with the help of a diagram. 1. It is a small pelagic and marine colony in the tropical seas. 2. It is discoidal in shape and is of bright blue colour. 3. The disc is generally oval and flat, but may also be some-what rhomboidal in some cases. 4. [...]
In this article we will discuss about the structure of Porpita with the help of a diagram. 1. It is a marine and polymorphic colony found in abundance around southern Atlantic coasts. 2. It is discoidal in shape and thus resembles a medusa. 3. A distinct and independent float is absent, but the disc is chitinous, multi-chambered and encloses [...]