Echinonidae, [553]

Echinopluteus, [607], [608];

metamorphosis of, [613], [614]

Echinosphaerites, [598];

E. aurantium, [598]

Echinothuriidae, [530], [531], [532], [535], [558], [560]

Echinus, [533], [539];

E. esculentus, [504] f. [505], [507], [511]-[515];

locality, [504];

spines, [506];