The Echinoid Directory

Echinocyamus pusillus (Müller, 1776)
	Common name: English - Pea urchin, Dwarf sea urchin, Small sea urchin, German - Zwerg-Seeigel, French - Petit oursin de sable, Spanish - Ericillo de arena Systematics: Echinocyamidae, Clypeasteroida Distribution: North-Eastern Atlantic Ocean Diet: Foraminiferans, encrusting organisms Feeding type: Epipsammic grazer Habitat: Coarse shellgrit, coarse gravel Depth range: Littoral - 1250 m Maximum test size: 14 mm Behaviour: Infaunal
3D model (interactive)	Model
3D model (static)	Aboral, lateral and oral views
MRI pictures	MRI image slices
Illustrations from literature	Digestive tract & Aristotle's lantern, aboral view from Grassé (1948)
More images	http://www.nhm.ac.uk/research-curation/projects/echinoid-directory/taxa/taxon.jsp?id=774
Technical information	Specimen ID: - freshly fixed specimen Expedition: freshly fixed specimen collected by Biologische Anstalt Helgoland (BAH) Collected in: 2006, near Helgoland island, North Sea Collected by: Biologische Amstalt Helgoland (BAH) Identified by: BAH Specimen test size: 5 mm Scanning location: Würzburg 17.6T Scanning solution: Formalin + Magnevist MRI dataset resolution: 20x18x18 µm³
Literature cited	Agassiz, A. 1872. Revision of the Echini. Illustrated Catalogue of the Museum of Comparative Zoology 7. Grassé, P. 1948. Tome XI - Echinodermes, Stomocordes, Procordes. In: Traite de Zoologie. Paris: Masson.

Echinocyamus pusillus (Müller, 1776)