Figure 4 in Species of Antarctoscyphus Peña Cantero, García Carrascosa and Vervoort, 1997 (Cnidaria: Hydrozoa: Symplectoscyphidae) collected by US Antarctic expeditions: biogeographic implications

Figure 4. Antarctoscyphus biformis (Jäderholm, 1905): (a) paired branch showing branching and hydrothecal arrangement; (b) distal part of cauline internode showing axillary hydrotheca and basal part of paired branches; (c) fragment of distal part of a branch showing shape and arrangement of hydrothecae; (d, e) hydrothecae; (f) detail of hydrothecal distal part, showing cusps. Scale bars: 1 mm (a), 500 µm (c), 250 µm (b, d), 50 µm (f).