FIGURE 7. A in On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles

FIGURE 7. A: Sertularia tumida Allman, 1877—fragment of stem. B: Sertularia turbinata (Lamouroux, 1816)—fragment of stem. C and D: Symmetroscyphus intermedius (Congdon, 1907)—two hydrothecae (C); nematocysts (D). E and F: Thyroscyphus marginatus (Allman, 1877)—fragment of colony with gonotheca (E); gonotheca with acrocysts (F). G: Thyroscyphus ramosus Allman, 1877—fragment of colony. H to J: Antennella secundaria (Gmelin, 1791)—fragment of stem in lateral view (H); hydrotheca in frontal view (I); nematocysts (J). K to O: Antennella sp.—fragment of stem in lateral view (K); hydrotheca from distal part of stem, in frontal view, note absence of nematotheca behind hydrotheca (L); hydrotheca from basal part of stem, in lateral view, note presence of supra-axillar nematotheca behind hydrotheca (M); nematothecae, from left to right and top to bottom: from stem internodes, median inferior, lateral, and supra-axillar (N); nematocysts (O). Scale bars: 10 µm (D, J, O); 20 µm (N); 100 µm (I, L, M); 200 µm (K); 300 µm (A, B, H); 400 µm (C); 500 µm (F); 1 mm (E, G).