The Systematics of Sympatric Species in West Indian Spatangoids
A revision of the Genera Brissopsis, Plethotaenia, Paleopneustes, and Saviniaster. By Richard H. Chesher. (Studies in Tropical Oceanography No. 7.) Pp. vii + 168 + 35 plates. (University of Miami Press: Coral Gables, Florida, January 1969.) $12.
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CLARK, A. Irregular Echinoids. Nature 222, 1007 (1969). https://doi.org/10.1038/2221007a0
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DOI: https://doi.org/10.1038/2221007a0