Magellanic region, biogeography, stygofauna, Chile, Ruffia patagonica, vicariance, Amphipoda, Gondwana, Geography, Climatology, Geomorphology, Electronic components, Zoology, Fresh water, Biology, Antarctic regions, Aquatic arthropods, Electric motors, Limnology, Engineering, Biological taxonomies, Taxa, Crustaceans, Systematics, Biogeography and Phylogeny,...