In this article we will learn about the structure of Hyalonema with the help of a diagram. 1. It is a marine and free living sponge found at considerable depths around New England coast and America. 2. Commonly called glass-rope sponge. 3. Body comprised of a ball-like apical part and a long rope-like stalk. 4 The body looks-like a Ball [...]
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 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 [...]