Prionocidaris is a genus of echinoderms belonging to the family Cidaridae.
The genus has almost cosmopolitan distribution.
Species:
Prionocidaris anacachoensis Prionocidaris australis Prionocidaris baculosa Prionocidaris bispinosa Prionocidaris callista Prionocidaris cookei Prionocidaris glandulosa Prionocidaris haasti Prionocidaris hawaiiensis Prionocidaris katherinae Prionocidaris malindiensis Prionocidaris marchalli Prionocidaris neglecta Prionocidaris pawpawensis Prionocidaris pistillaris Prionocidaris popeae Prionocidaris praeverticillata Prionocidaris scoparia Prionocidaris thomasi
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