In this article we will discuss about the L.S. ospharisium and ctenidium of pila with the help of suitable diagrams. L.S. Ospharisium of Pila: 1. It is the L.S. of Ospharidium of Pila. 2. It is the chemoreceptor organ of the animal, which helps in testing the purity of incoming water currents in mantle cavity. 3. It is elongated, oval [...]
In this article we will discuss about the structure of parapodium of heteronereis with diagram. 1. It is the slide of parapodium of Hereronereis. 2. The parapodium is biramous and ties on either side of a segment and is an organ of locomotion (swimming). 3. It comprises a dorsal notopodii and a ventral neuropodial lobe each of which is supported [...]
The below mentioned article provides a diagram of obelia medusa. 1. It is the slide of Obelia medusa which is a reproductive zooid responsible for giving rise to new progeny. 2. These are saucer-like or umbrella- shaped structures and are developed from blastostyles asexually. 3. All along the margin they bear a ring of tentacles (velum). 4. The inner surface [...]