Census of Cnidaria (Medusozoa) and Ctenophora from South American marine waters OLIVEIRA, OTTO M. P. MIRANDA, THAÍS P. ARAUJO, ENILMA M. AYÓN, PATRICIA CEDEÑO-POSSO, CRISTINA M. CEPEDA-MERCADO, AMANCAY A. CÓRDOVA, PABLO CUNHA, AMANDA F. GENZANO, GABRIEL N. HADDAD, MARIA ANGÉLICA MIANZAN, HERMES W. MIGOTTO, ALVARO E. MIRANDA, LUCÍLIA S. MORANDINI, ANDRÉ C. NAGATA, RENATO M. NASCIMENTO, KARINE B. JÚNIOR, MIODELI NOGUEIRA PALMA, SERGIO QUIÑONES, JAVIER RODRIGUEZ, CAROLINA S. SCARABINO, FABRIZIO SCHIARITI, AGUSTÍN STAMPAR, SÉRGIO N. TRONOLONE, VALQUÍRIA B. MARQUES, ANTONIO C. Zootaxa 2016 2016-11-18 4194 1 1 256 Hartlaub, 1900 Hartlaub 1900 [151,598,1252,1277] Hydrozoa Sertulariidae Sertularella Animalia Leptothecata 114 115 Cnidaria species antarctica  Distribution in SouthAmerica: polyp—Pacific Ocean, Chile, at 39.85°S 73.44°W, and from 43.40°Sto 55.28°S(Jäderholm 1903 p. 283; Nutting 1904 p. 84–85; Hartlaub 1905 p. 649–650; Galea et al.2009b p. 7–12; Galea & Schories 2012a p. 22–23); Atlantic Ocean, Argentina, from 48°S to 56°S (Hartlaub 1905 p. 650–652; Jäderholm 1905, 1910; Blanco 1963, 1994a; Vervoort 1972; El Beshbeeshy 1991, 2011; Genzano & Zamponi 1997; Seo 2003). Habitat: polyp—from 8 to 247mdepth, on algae (Jäderholm 1903 p. 283; El Beshbeeshy 1991, 2011; Blanco 1994a; Galea et al.2009b p. 7–12).