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 Allman, 1885 Allman 1885 [151,718,1124,1149] Hydrozoa Sertulariidae Symplectoscyphus Animalia Leptothecata 136 137 Cnidaria species margaritaceus  Distribution in SouthAmerica: polyp—Atlantic Ocean, Argentina, at Strait of Magellan (Allman 1885 p. 133; Nutting 1904 p. 95; Hartlaub 1905 p. 657–658; Genzano & Zamponi 1997). Habitat: polyp—on  Macrocystis pyrifera(Allman 1885 p. 133).