Heart urchin
| Loveniidae | |
|---|---|
| Echinocardium cordatum | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | Spatangoida
|
| Family: | Loveniidae Lambert 1905
|
Heart urchins are burrowing echinoids. This life-style is similar to that of sand dollars, but the heart urchins belong to another group. Heart urchins belong to the Family Loveniidae in the Order Spatangoida.[1][2]
Echinocardium is the standard British heart urchin on sandy shores. Its spicules are converted to soft form, and they have sticky tube-feet which pass food to their gut. They can burrow up to five times their own height, and still keep connection with the surface for oxygenated water and food.[1]