Abstract
The Cheyletid mites parasitic or commensal on mammals in Malaysia are revised. Following species have been found or recorded: Cheyletus malaccensis Oudemans, C.fortis Oudemans, C.malayensis Cunliffe, C. bidentatus n. sp., C. pluridens n. sp., Cheletonella vespertilionis Womersley, Hylopecheyla malayi n. sp., Chelonotus selenirhynchus Berlese and Criokeron quinta (Domrow & Baker). Two other species may also be expected: Hylopecheyla bunguranensis Fain and Theivkachela ratufi Ide & Kethley.