Microporella ciliata (Pallas, 1766) from the Ionian Sea, Gulf of Noto, PMC Rosso-Collection I. H. B.85a A general view of the colony B autozooids at the colony margin showing distal and distolateral pore chamber windows C ovicellate autozooids D autozooid with the characteristic four, thin, oral spine bases. Note how commonly avicularia regenerate E close-up of the orifice showing a series of median denticles and two lateral condyles. Scale bars: 500 µm (A); 250 µm (B); 200 µm (C); 100 µm (D); 50 µm (E).