FIGURE 12. Oswaldella shetlandica Stepanjants, 1979. A in SEM study of species of Oswaldella Stechow, 1919 (Cnidaria, Hydrozoa, Kirchenpaueriidae), with an annotated checklist of the species of the genus

FIGURE 12. Oswaldella shetlandica Stepanjants, 1979. A, hydrocladial branching and disposition of hydrothecae and gonothecae; B, cauline apophysis showing axillary nematophores and 'mamelons'; C–D, unforked hydrocladial internodes (C frontal view, D lateral view); E, distal unforked hydrocladial internode (note the sharp distal end of internode); F, gonotheca. Scale bar: 400 µm (A), 100 µm (C–E) and 50 µm (B–F).