Locality:
Sicily, Italy

Literature for identification (localities mentioned):
Bergbauer & Humberg, 2001; p. 224 (Western Mediterranean, Atlantic from Portugal to Norway)
Erhardt & Moosleitner, 1995; p. 1218 (Mediterranean Sea)
Wirtz & Debelius, 2003; p. 286 (Mediterranean, Strait of Gibraltar, Madeira)

Mediterranean, transparent, solitair