Nematodes from terrestrial and freshwater habitats in the Arctic Author Holovachov, Oleksandr text Biodiversity Data Journal 2014 2 1165 1165 http://dx.doi.org/10.3897/BDJ.2.e1165 journal article http://dx.doi.org/10.3897/BDJ.2.e1165 1314-2828--1165 Panagrolaimus rigidus (Schneider, 1866) Notes Svalbard ( Loof 1971 ); Taymyr and Severnaya Zemlya, Russia ( Kuzmin 1976 , Kuzmin and Gagarin 1990 ).