| Five opisthobranch species were collected during the Belgian and Belgian-Dutch Antarctica expeditions to the Riiser-Larsen Sea, the Princess Ragnhild Coast ("Mission Iris") (1960-1967) and Admiralty Bay (King George Island) (1987-1991). These species include <i>Philine alata</i> Thiele, 1912, <i>Bathyberthella antarctica</i> Willan & Bertsch, 1987, <i>Notaeolidia gigas</i> Eliot, 1905, <i>Aegires (Anaegires) albus</i> Thiele, 1912 and <i>Austrodoris kerguelenensis</i> Bergh, 1884. This material is deposited in the Royal Belgian Institute of Natural Sciences. The present contribution provides anatomical and faunistic data on this collection and extends the distributional range of several species. |
