Argentine Antarctica observatory, where he also worked a post office was installed. Civil (employee of the Argentine company official post and telegraph) Hugo Alberto Acuna accounted hoist for the first time in an official way the flag of Argentina on the Argentine Antarctic sector, on 22 February 1904. Such an observatory became the Orcadas Base the oldest existing today across the Antarctic territory permanent human settlement. The Argentine corvette ARA Uruguay returned to Antarctica in 1905 (sailed from the port of Buenos Aires on 10 December 1904) to relieve staffing of the South Orkney and refer to Deception Island and Wiencke Island
Amphibolis antarctica Amphibolis antarctica Amphibolis antarctica, commonly known as wire weed or sea nymph, is a seagrass found in coastal waters of southern and western Australia. It is a herbaceous perennial up to 80 centimetres high. It has shorter leaves than the other "Amphibolis" species, "A. griffithii". Its flowers are green, and appear from September to February. First published as "Ruppia antarctica" by Jacques Labillardière in 1807, it has since been moved into numerous genera. It was named "Caulinia antarctica" by Robert Brown in 1810, "Posidonia antarctica" by C. P. J. Sprengel in 1824, " Cymodocea antarctica" by C. S. Kunth in