Lugar de publicación POPULATION CHARACTERISTICS AND BIOLOGICAL ASPECTS OF THE BARNACLE ELMINIUS-KINGII GRAY IN THE ESTUARY OF THE RIO LINGUE (MEHUIN, CHILE) 1983 LOCOMOTOR-ACTIVITY OF ORCHESTOIDEA-TUBERCULATA (AMPHIPODA, TALITRIDAE) ON THE SURFACE OF A SANDY BEACH OF SOUTHERN CHILE (MEHUIN, VALDIVIA PROVINCE) 1980