Mitrocomium cirratum Haeckel, 1879

Distribution in South America coast: polyp—Atlantic Ocean, Brazil, at 3.54°S 38.80°W (Fernandez et al. 2015). medusa—Atlantic Ocean, Brazil, from 20°S to 26.6°S (Vannucci 1957b; Ramírez & Zamponi 1981; Migotto et al. 2002; Nogueira Jr. et al., 2015b).

Habitat: polyp—on fouling, from 2 to 4m depth (Fernandez et al. 2015); medusa—from 36m to 100m depth (Vannucci 1957b; Nogueira Jr. et al., 2015b).