Desmanthus incrustans (Topsent 1889)

Lion Gulf, Banyuls, 42°28’N 3°7’E (Topsent 1893);

Lion Gulf, Cap l’Abeille, 42°28’N 3°8’60’’E, 30-40 m of depth (in Pouliquen 1972 p. 751)

Lion Gulf, Marseille coast, Trémies dark cave, 43°20’N 5°30’E, SCUBA diving (Pouliquen 1969, 1972)

Ligurian Sea, Portofino, Aurora, 44°18’N 9°12’E, 13 m of depthrocky bottom, XI.1976, SCUBA diving (Pulitzer-Finali 1983)

Ligurian Sea, Bogliasco, 44°22’N 9°4’E, 10-15 m, coralligenous on vertical cliffs, SCUBA diving (Pansini and Pronzato 1973)

Central Tyrrhenian Sea, Ischia, Monte Vico, 40°43’N 13°54’E, semi-dark cave, 3-4 m of depth, SCUBA diving, 7.VIII.1968 (Pulitzer-Finali 1972)

Ionian Sea, Leuca, 39°47’N 18°20’E, 2-3 m of depth, shallow water cave, SCUBA diving, 9.VII.1967 (Pulitzer-Finali 1983)

Distribution: Western and Central Mediterranean Sea, Caribbean, Indian Ocean, Philippines, Papua New Guinea (van Soest and Hajdu, 2000; Pisera and Lévi 2002).