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Goniocidaris (primary spines)
Description Shape of primary spines: a. The primary spines are set with thorns, but a distinct basal disc is lacking: Goniocidaris (Goniocidaris) tubaria b. The spines are set only with a pair of spurs at the base of the shaft: Goniocidaris (Goniocidaris) umbraculum
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added on 2011-02-23473 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...
© 2011 Schultz, Heinke
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