Shigei, M. 1975. A new species of the heart urchins, an extant species of Brissopatagus (Echinoidea: Spatangoida), from Sagami Bay. Journal of the Faculty of Science, Tokyo University, Section 4, Zoology 13, 333-339.
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Shigei, M.
1975
A new species of the heart urchins, an extant species of Brissopatagus (Echinoidea: Spatangoida), from Sagami Bay
Journal of the Faculty of Science, Tokyo University, Section 4, Zoology