Echinocardium pennatifidum
# Echinocardium pennatifidum

Echinocardium pennatifidum is a species of sea urchin in the family Loveniidae, chiefly found in the northeast Atlantic region.

## Description

Echinocardium pennatifidum is up to 7 cm (2.8 in) long. It has coarser, more regularly arranged spines than other Echinocardium. The frontal ambulacrum is flush with the front of the heart-shaped test. It has a short labrum, not reaching the second pair of ambulacral plates. The specific name means "cut into the shape of a feather."

## Distribution

Found in the waters off Great Britain, Ireland, the North Sea and associated islands.

## Ecology

Echinocardium pennatifidum buries itself in coarse sand or fine shell gravel in the sublittoral, from low on shore to depths of 150 m (490 ft).

## Gallery

* Posterior surface
* Ventral surface
* Lateral view of test
* Dorsal surface of test
