The Echinoid Directory

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Prymnaster angulatus Koehler 1914; Recent, Indian Ocean. Apical view, from Koehler, R. 1914. Echinoderma of the Indian Museum, VIII, Echinoidea (i) Spatangides. Echinides du Musee Indien a Calcutta; 257 pp., 20 pls (plate 10, fig. 4).

Length of test 20 mm.