Isopods of the genus Astacilla (Valvifera, Arcturidae) from the LIFE + INDEMARES project off Alborán Island (S Spain), with the description of a rare species A. carlosoteroi (Reboreda, Wägele & Garmendia, 1994)

Three species of the isopod genus Astacilla were collected off Alboran Island (SW Mediterranean Sea) within the LIFE + INDEMARES project. Twelve specimens of the rare species Astacilla carlosteroi (Reboreda, Wagele & Garmendia, 1994) were found; this species is only known as a single incomplete female from Galicia (NW Spain, Atlantic). Males, reported for the first time, are described, as well as morphological details provided for two additional species , A. dilatata (G.O. Sars, 1883) and A. mediterranea Koehler, 1911.