SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus Author Molinero, A. González Author Peña Cantero, A. L. text Zootaxa 2015 4052 4 401 441 journal article 10.11646/zootaxa.4052.4.1 93f6d085-8e63-4d1e-89c1-f950128b2a61 1175-5326 245887 47EF6E9D-9064-4899-B3DD-276FF7C969EB Oswaldella frigida Peña Cantero & Vervoort, 2004 Oswaldella frigida Peña Cantero & Vervoort, 2004 : 830 –832, fig. 8; Peña Cantero, 2013: 129; 2014: 1720–1721 , fig. 4a–d. Ecology. Shelf and slope species, found at depths between 44 ( Peña Cantero & Vervoort 2004 ) and 708 m ( Peña Cantero 2014 ). Gonothecae : January ( Peña Cantero 2014 ). Distribution. Circum-Antarctic ( Peña Cantero 2014 ). West Antarctica : Off Low Island and off Nelson Island , in the South Shetland Islands ( Peña Cantero & Vervoort 2004 ). East Antarctica : Off Queen Mary Coast ( Peña Cantero 2014 ).