First South American Phreatogammarid, with Comments on the Arrangement of Coxal and Sternal Gills, and on the Biramous Condition of the Seventh Pereiopod in Amphipods
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,...