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Porticciolio, Sardinia, Italy
latitude: 42.883331     
longitude: 9.466667     
Precision of location: Alexandria Digital Library (with NGA GNDB data) 
Site Named Here: By name of site (or city, etc.) 
| Trigonostomum penicillatum | 14 August, 1994 | +/- 10 m | on algae | |
| Trigonostomum venenosum | 14 August, 1994 | 0.2-2.5 m | on Vaucheria-like algae on rocks |