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 [...]
In this article we will discuss about the structure of Fungia with the help of a diagram. 1. It is the dried skeleton of a "mushroom coral",which is found in the Gulf of California. 2. It is solitary, large and above with below. 3. The siphonoglyphs are absent and the theca is present on the lower surface only. 5. The [...]