Verongiida Bergquist 1978

Figure 37.Aplysina aerophoba. a) underwater shot of a specimen with typical seasonal outgrowths in spring-summer b, c skeletal network at different magnifications (LM) with indistinguishable primary and secondary fibres both characterised by an empty core.

Figure 38.Aplysina cavernicola. a large digitate colony ca. 70–80 cm b cross section (LM) of a laminate fibre showing a light spongy core that, in dried conditions, becomes empty c, d different magnifications (LM) of the skeleton, indistinguishable from that of Aplysina aerophoba.

Figure 39.Hexadella spp. Underwater photographs of two specimens with the surface ornamentation and oscular funnels typical of the genus. Colour in vivo is not diagnostic at the species level.

Figure 39.Hexadella spp. Underwater photographs of two specimens with the surface ornamentation and oscular funnels typical of the genus. Colour in vivo is not diagnostic at the species level.

Figure 39.Hexadella spp. Underwater photographs of two specimens with the surface ornamentation and oscular funnels typical of the genus. Colour in vivo is not diagnostic at the species level.

Figure 39.Hexadella spp. Underwater photographs of two specimens with the surface ornamentation and oscular funnels typical of the genus. Colour in vivo is not diagnostic at the species level.