FIGURE 9 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 9. Antennella secundaria (Gmelin, 1791): A, third stem internode with nematothecae; B, ahydrothecate internode with one nematotheca; C, ahydrothecate internode with three nematothecae; D, lateral view of hydrothecate internode showing hydrotheca and mesial superior nematotheca (arrow); E, lateral view of hydrothecate internode showing hydrotheca and lateral nematothecae (arrow). Nemertesia ramosa (Lamarck, 1816): cauline apophysis showing nematothecae and mamelon (arrow); G, fragment of hydrocladium showing arrangement; H, hydrocladial internode with hydrotheca and nematothecae. Scale bars: 200 µm (A–C, F–G), 100 µm (D–E, H).