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 4453T Mereschkowsky, 1877 Mereschkowsky 1877 [151,723,652,677] Hydrozoa Monobrachiidae Monobrachium Animalia Limnomedusae 192 193 Cnidaria species parasitum  Distribution in SouthAmerica: polyp—Atlantic Ocean, Brazil, from 21°S to 23°S (Grohmann et al.2013). Habitat: from 701 to 998mdepth, on the bivalve mollusk  Mendicula ferruginosa(Grohmann et al.2013)