Phialella quadrata (Forbes, 1848)

Synonyms in the area:? Campanulina chilensis Hartlaub, 1905 p. 589–592; Leloup 1974 p. 3–4 [polyp]; Phialella cf. quadrata —Galea 2007 p. 39–42; Galea & Schories 2012a p. 22–24 [polyp].

Distribution in South America: polyp—Pacific Ocean, Chile, from 23°S to the Strait of Magellan (Hartlaub 1905 p. 589–592; Kramp 1966 p. 8–9; Leloup 1974 p. 3–4; Galea 2007 p. 39–42; Galea et al. 2009a p. 337; Galea & Schories 2012a p. 22–24);

medusa—Pacific Ocean, Peru to Chile, from 18.25°S to 56°S (Fagetti 1973 p. 40; Palma 1994 p. 28; Palma & Apablaza 2004 p. 56; Apablaza & Palma 2006 p. 84, 86; Palma et al. 2007a p. 70, 2007b p. 74, 80).

Habitat: polyp—up to 40m depth, on hydroids, algae and crab carapace (Leloup 1974 p. 3–4; Galea 2007 p. 39–42; Galea et al. 2009a p. 337; Galea & Schories 2012a p. 22–24).