FIGURE 2 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections

FIGURE 2. Amphinema biscayana (Browne, 1907): A, cross section of polysiphonic stem, showing main axial tube and accessory ones; B, cross section of a distal main tube (note inner network of perisarc); C, Polyp perisarc cup originating from auxiliary tube. D, polyp emerging from perisarc cup; E-F, gonophores; G, actinula-like form; H, microbasic eurytele nematocyst (arrow). Scale bars: 200 µm (A-B, D, E-F), 100 µm (C, G), 10 µm (H).