Tiaricodon coeruleus Browne, 1902

Remarks: this species was assigned to the family Moerisiidae by Browne & Kramp (1939) and Vannucci & Tundisi (1962).

Distribution in South America: medusa—Pacific Ocean, Chile, at 33°S in Valparaíso Bay (Kramp 1966; Fagetti 1973 p. 50); Atlantic Ocean, Argentina, at Malvinas (Falkland) Islands, at Puerto Deseado in Santa Cruz (Patagonia), and at Strait of Magellan (Browne 1902; Vanhöffen 1912; Browne & Kramp 1939; Vannucci & Tundisi 1962; Genzano et al. 2008a).

Habitat: medusa—endemic to South American temperate and subantarctic waters (Vannucci & Tundisi 1962).