Acariens recoltes par le Dr. J. Trave aux iles Subantarctiques. l. Familles Saproglyphidae et Hyadesidae (Astigmates). - The author has studied a collection of mites collected by Dr J. TRAVE in Kerguelen, Marion and Crozet Islands. This paper is devoted to the families Saproglyphidae and Hyadesidae (Astigmata). These families are represented by eight species, belonging to four genera. Among this material there are five nevv species and two new subspecies which are described and figured here.