Sphaerechinus granularis (Lamarck, 1816)
violet sea urchin / riccio granulare di mare

Location:
Found in 8-10m depth, Santa Marina, Salina, Eolian Islands, Sicilia.

Links:
World Register of Marine Species
https://www.marinespecies.org/aphia.php?p=taxdetails&id=124427
SeaLifeBase
https://www.sealifebase.ca/summary/Sphaerechinus-granularis.html
Global Biodiversity Information Facility (GBIF)
https://www.gbif.org/species/2278896
iNaturalist
https://www.inaturalist.org/taxa/118753-Sphaerechinus-granularis

International Union for Conservation of Nature (IUCN) status:
Not Evaluated on the IUCN Red List (Global)
Not Evaluated on the IUCN Red List (Mediterranean)
​Not Evaluated on the IUCN (Italy) Lista Rossa