Ontogeny of South African intertidal oribatid mite species (Acari, Oribatida, Ameronothroidea) and supplements to adult morphology.
  Geographic variation in size of an Antarctic mite Tydeus erebus Strandtmann (Acarina - Prostigmata)
  The genus Asca von Heyden (Acarina: Mesostigmata) in North America, Hawaii and Europe