New collections of benthic marine algae from Livingston and Deception Islands (South Shetland Islands) and Trinity Island (Bransfield Strait) Antarctica

New lists of the marine benthic algae from Livingston, Deception and Trinit y Islands (Antarctica) are presented, based on collections made during four Spanish expeditions and previous records from herbaria. Some comments on p revious records included in the literature are given. The list contains 37 species of Rhodophyta, 14 Phaeophyta and 10 Chlorophyta, as well as one Chr ysophyta, Antarctosaccion applanatum (Gain) Delepine. Two of these are new records for the South Shetlands Islands: Blidingia minima (Naegeli ex Kutzi ng) Kylin and Pachymenia orbicularis (Zanardini) Setchell et Gardner.