In this article we will discuss about the structure of Euplectella with the help of a diagram. 1. It is a marine sponge found in deep waters in Pacific oceans near West Indies and Philippines islands. 2. Commonly called "Venus-flower basket" by local inhabitants. 3. The body is tubular, curved and basket-like and is made up of triaxon spicules. 4. [...]
In this article we will discuss about the structure of Finger Sponge (Chalina) with the help of a diagram. 1. It is a marine sponge called finger sponge or deadman's fingers and is found from Rhodes Islands to Lebrador. 2. It is a highly branched structure of orange red colour and is having a small common stalk. 3. Skeleton is [...]
In this article we will discuss about the structure of Physalia with the help of a diagram. 1. It is a colonial sponge. The colony bears a transparent bluish or pinikish balloon-like large float or pneumatophore at the top. 2. The pneumatophore floats above the surface and the whole colony remains inside water. 3. A pair of gas glands are [...]