Rhizophysa filiformis (Forskål, 1775)

Synonyms in the area: Epibulia ritteriana Haeckel, 1888; Alvariño, 1981; Pugh 1999.

Remarks: Pugh (1999) comments that Epibulia ritteriana is probably a junior synonym of this species. Records of Rhizophysa spp. in Araujo (2012) are possibly this species.

Distribution in South America: Pacific Ocean, Colombia, from 6°N to 1°N, 77°W to 82°W (Alvariño 1976; Cely & Chiquillo 1993); Atlantic Ocean, Argentina, Buenos Aires coast, in front of the Río de la Plata (Alvariño 1981), from 36ºS to 38ºS (specimens collected in this study).

Habitat: oceanic species, widely distributed in tropical, subtropical and temperate waters (Alvariño 1971, 1981; Pagès & Gili 1992; Pugh & Gasca 2009).