Moerisia inkermanica Paltschikowa-Ostroumova, 1925

Synonyms in the area: Ostrumovia inkermanica —Paranaguá 1963; Ramírez & Zamponi 1981; Zamponi 1983a [medusa].

Remarks: Genzano et al. (2008a) considered that the record given by Zamponi (1983a) for the Argentinean coast should be confirmed.

Distribution in South America: medusa—Atlantic Ocean, Brazil to Argentina, at 8.24°S 34.85°W, from 10°S to 20°S, from 25.30°S to 26.5°S, from 39°S to 53°S (Paranaguá 1963; Ramírez & Zamponi 1981; Zamponi 1983a; Migotto et al. 2002; Nogueira Jr. & Oliveira 2006; Genzano et al. 2008a; Nogueira Jr. 2012).

Habitat: medusa—invasive species established in different estuarine areas of the world (Mills & Rees 2000).