Ceratozetoidea (Acari: Oribatida) of lowland tropical rainforest, La Selva, Costa Rica
  A new narval smaridid mite (Acarina, Smarididae) from Costa-Rica
  Lohmanniidae (Acari, Oribatida) from the Galapagos islands, the Cocos Island, and Central America
  A second new mite from the leaf-axils of a Bromeliad from Costa-Rica (Rhizoglyphinae, Acaridae)
  A new species of Hoplomegistus from Costa Rica (Acarina: Hoplomegistidae)
  Seven new species of false spider mites (Tenuipalpidae)