Figure 4A-I. Ectopleura exxonia. A in Five athecate hydroids (hydrozoa: anthoathecata) from south-eastern australia

Figure 4A-I. Ectopleura exxonia. A, proximal stem and hydrorhiza; B, hydranth with immature gonophores (after Watson, 1978); C, cluster of developing gonophores; D, developing gonophore at base of aboral tentacle; E, F, apical process on nearly mature gonophore; G, stenotele from aboral tentacle; H, stenotele from oral tentacle; I, heteroneme from tentacles. Scale bar: A, B, 1 mm, C, 0.2 mm, D, 0.3 mm, G−I, 10 µm.