FIGURE 2. A in Hincksella brevitheca, a new species of hydroid (Cnidaria: Hydrozoa: Syntheciidae) from Cuba

FIGURE 2. A to I: Hincksella brevitheca, sp. nov. – colony form (A); detail (B); insertion of cladium on stem apophysis (C); details of cladium, fragments without (D) and with (E) nodes; hydrotheca (F) showing area of attachment of hydranth to abcauline wall (arrowhead); frontal view of the hydrothecal aperture (G); length variability of free adcauline wall of hydrotheca (H); nematocyst from tentacles of hydranth (I). J to L: Syntype of Sertularella hartlaubi Nutting, 1904. Stems from microslide 1 (J) and microslide 2 (K, L). The missing cladia are indicated by arrowheads. Scale bars: 1 cm (A); 1 mm (B, J, K, L); 500 µm (C, D); 300 µm (E); 200 µm (F); 100 µm (G, H); 10 µm (I).