Microporella ichnusae sp. nov. from the Iberian-Provençal Basin, NW Sardinia, Capo Caccia-Isola Piana MPA, Falco Cave, Paratype PMC. B30b. 20.11.2020 A unbleached colony B avicularium with open mandible, showing the channelled rostrum. The straight, short, setiform mandible has a hook at about one-third of its length which clamps it to the rostrum tip C bleached autozooids showing size and shape variability. Note that the majority of autozooids has a single avicularium, while few autozooids have paired avicularia (white asterisks) or none (black asterisks) D irregularly-shaped autozooids and kenozooids along the contact zone of lobes E autozooids and kenozooid (asterisk) near the colony margin with pore-chamber windows visible along exposed lateral walls F autozooid at the growing edge showing the morphology of the orifice and four, thin spine bases. Scale bars: 500 µm (A, C, D, E); 50 µm (B); 100 µm (F).