Halocynthia papillosa (Linnaeus, 1767)
Pyuridae

Sicily, Italy

Sicily, Italy

Sicily, Italy

Crete, Greece

Locality:
Sicily, Italy

Literature for identification (localities mentioned):
Erhardt & Moosleitner, 1995; p. 1247 (Mediterranean Sea)
Wirtz & Debelius, 2003; p. 290 (Mediterranean, temperate eastern Atlantic, not Madeira or Azores)