The Echinoid Directory

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Dialithocidaris gemmifera Agassiz, 1898; holotype. Recent, Hawaii. Apical view, from Agassiz, A. & Clark, H. L. The Panamic deep sea Echini. Memoirs Harvard Museum of Comparative Zoology31, 1-243, 112 pls (pl. 23).

Diameter of test 21 mm.