Structure of Heart Urchin (Echinocardium): With Diagram | Zoology
In this article we will discuss about the structure of Heart Urchin (Echinocardium) with the help of a diagram. 1. It is commonly known as "heart urchin" and is a marine echinoderm found in shallow waters around coral reefs. 2. Body heart-shaped, some-what ovoid and is having a distinct oral and aboral surfaces. 3. There is neither a central disc [...]