In this article we will discuss about the structure of Sea lemons (Doris) with the help of a diagram. 1. Commonly called "sea-slugs" or "sea lemons" and are sluggish marine molluscs. 2. Body some what ovoid in shape convex dorsally and flattened ventrally. 3. External or internal shell absent. 4. Mantle large and anus is situated on postero-dorsal side. 5. [...]
In this article we will discuss about the structure of Razor Fish (Solen) with the help of a diagram. 1. Its common name is razor shell or razor fish and is found in India and U.S.A. It is a burrowing bivalve. 2. The shell valves are long, of equal size, with parallel straight margins and with terminal umbo. 3. The [...]
In this article we will discuss about the structure of Ship Worm (Teredo) with the help of a diagram. 1. They are commonly known as "ship worm" and are found in deep holes and burrows in submerged wood of ships and boats. 2. The body is worm-like, elongated and without any distinct head. 3. The mantle is tubular, runs all [...]