In this article we will discuss about the structure of Apple Snail (Pila) with the help of a diagram. 1. It is commonly called "apple snail" and is found in fresh water ponds, pools and ditches in India and adjacent regions. 2. Shell is external and spirally coiled and is comprised of 6 whorls. 3. The axis around which coiling [...]
In this article we will discuss about the structure of Garden Slug (Vaginula) with the help of a diagram. 1. It is commonly called garden slug and is found in lawns and gardens hidden under fallen leaves and in damp dark areas. 2. The body is elongated, dorsal surface is convex and ventral flat. 3. Shell in adult and body [...]
In this article we will discuss about the structure of Sea Butterflies with the help of a diagram. 1. Commonly known as “sea butterflies”.They are pelagic and are found along Atlantic coast swimming or attached to sea weeds. 2. Foot well developed, very prominent and is modified into a pair of wing-like epipodia or fin (pteropod) for swimming and springing [...]