O'Meara, E. (1877). On Coscinodiscus craspedodiscus, C. arafusaensis and Heliopelta perforata. Quarterly Journal of Microscopical Science, 2nd series,, 18: 461, 463.
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O'Meara, E.
1877
On Coscinodiscus craspedodiscus, C. arafusaensis and Heliopelta perforata.
Quarterly Journal of Microscopical Science, 2nd series,