The water mites of Madagascar (Acari, Hydrachnidia): a revised list completed by original material conserved at the Muséum national d’Histoire naturelle, Paris Author Gerecke, Reinhard Biesingerstr. 11, D 72070 Tübingen (Germany) reinhard. gerecke @ uni-tuebingen. de text Zoosystema 2004 26 3 393 418 journal article 10.5281/zenodo.5402510 1638-9387 5402510 Unionicola ( Polyatax ) sp. MATERIAL EXAMINED. — Madagascar . Northwest; Ankarana; 1. DISTRIBUTION. — Polyatax is probably a polyphyletic taxon including species from widely scattered areas of the world ( Cook 1974 ), but it had not previously been recorded from the Ethiopian Region; first record of the subgenus from Madagascar .