Microporella verrucosa (Peach, 1868) from the Ionian Sea, Ciclopi Islands MPA A, B PMC. Rosso Collection I.H. B-17a C–F PMC. Rosso Collection I.H. B-17a1 A young colony showing the encrusting portion with ancestrula (arrow) and starting developing branch (top right) B partly overgrown ancestrula and periancestrular autozooids C growing tip of a distally enlarging branch D old (proximal) branch portion showing secondary calcification obliterating orifices, sometimes only frontal avicularia are still visible E transverse section of a branch showing the thick walls converging towards the centre of the branch F close-up of wedge-shaped polypide cavities visible in transverse section. Scale bars: 500 µm (A, B, D, E); 1 mm (C); 200 µm (F).