During the BENTART 2006 Expedition, a specimen of the galatheid Munidopsis albatrossae (Crustacea, Decapoda) was sampled in the Bellingshausen Sea, at 1920 m depth on soft bottoms. This specimen represents the first record of the family for Antarctic waters. This and other recent records have substantially increased the known species richness of decapod crustaceans in Antarctic waters, which are discussed to reflect an increase of scientific effort, anthropogenic introductions, and/or new colonizations possibly associated to changes in environmental conditions.