Translingual

Echinus esculentus

Proper noun

Euechinoidea

1. A taxonomic subclass within the class Echinoidea – most extant sea urchins.

Hyponyms

• (subclass): Atelostomata (includes the heart urchins), Diadematacea (sea urchins with hollow spines), Echinacea (sea urchins with solid spines and rigid test), Gnathostomata (includes the sand dollars) (superorders)