FIGURE 107 in The non-Siphonophoran Hydrozoa (Cnidaria) of Salento, Italy with notes on their life-cycles: an illustrated guide

FIGURE 107. Gastroblasta raffaelei: A, hydranth with 2 gonothecae inside the sponge Ircinia sp.; B, hydranth; C, gonotheca; D, newly liberated medusa; E, 4-day-old-medusa; F, 10-day-old-medusa (E and F same scale bar); G, medusa during fission process; H, adult medusa (28-day-old) (modified after Gravili et al. 2007). Scale bars: A, C, D, E, F, H, 1.0 mm; B, 0.5 mm; G, 2.0 mm.