Possible significance of the claw structure in the Rhombognathinae (Halacaridae, Prostigmata, Acari)
Pugh, P.J.A.; King, P.E. and Fordy, M.R.  Arenicolous Halacaridae from the intertidal zone of Schooner Creek, Oregon (Acari: Prostigmata)
Krantz, G.W.