Mellitidae is a family of sand dollars, in the echinoderm order Clypeasteroida. These irregular sea urchins bury themselves in soft sediment in shallow seas.
Genera The World Register of Marine Species includes the following genera in the family:-
Encope L. Agassiz, 1840 Lanthonia Coppard, 2016 Leodia Gray, 1851 Mellita L. Agassiz, 1841 Mellitella Duncan, 1889
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