Unionicola (Hexatax) gracilipalpis (Viets, 1908)

Report associated with sponges: This has been reported among sponge Spongilla lacustris from Canada (Conroy 1979; among sponge of the family Spongillidae (Hevers 1980); among sponge Dosilia radiospiculata from Louisiana (Vidrine et al. 1986; Vidrine 1996).

Remarks: This has been reported from Michigan and western Canada (Cook 1980). Conroy & Scudder (1975) summarized reports of this mite from Lake Marion in Canada.