Contribution to the study of the marine algae of Sar Uanle (Southern Somalia). – Some preliminary researches have been carried out on the algal flora of Sar Uanle, lying south of Chisimaio in southern Somalia. The material first collected for these researches, that includes 69 species, appears mainly new for the Somalia coasts. This is due to the fact that the bibliography concerning this part of the western Indian ocean is very scarce. The presence of a remarkable percentage of species that are widely distributed in the indo-malaysian area, has been found out through the results of these enquiries.