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 tottoni Peña Cantero & Vervoort, 1996 Oswaldella tottoni Peña Cantero & Vervoort, 1996 : 139 –142, fig. 2; 1998: 37; 2004: 850; Peña Cantero et al ., 1997: 380–383, fig. 12; Peña Cantero & García Carrascosa, 1998 : 179 ; 1999: 214; Peña Cantero & Marques, 1999 : 85 . Oswaldella bifurca — Totton, 1930 : 208 –209, fig. 50. Ecology. Shelf species (Peña Cantero et al . 1997), found at depths between 256 ( Peña Cantero & Vervoort 1996 ) and 400 m (Peña Cantero et al . 1997) on muddy bottoms ( Totton 1930 ). Distribution. Circum-Antarctic ( Peña Cantero & Vervoort 2004 ). East Antarctica : McMurdo Sound, Ross Sea ( Peña Cantero & Vervoort 1996 ). West Antarctica : east coast of the Weddell Sea (Peña Cantero et al . 1997).