Psammechinus Explained

Psammechinus is a genus of sea urchins in the family Parechinidae containing two species:

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Image Scientific name Distribution
Psammechinus microtuberculatus (Blainville, 1825) western and eastern Atlantic Ocean, the Adriatic Sea and Aegean Sea
Psammechinus miliaris (P.L.S. Müller, 1771) eastern Atlantic Ocean from Scandinavia south to Morocco, but not in the Mediterranean Sea