NOTES ON THE TAXONOMY AND DISTRIBUTION OF THE INTERSTITIAL ROTIFERA FROM A DUNE POOL

A preliminary study of the interstitial Rotifera from a dune pool at t he Belgian coast yielded several rare and insufficiently known species , namely Colurella salina Althaus, Encentrum? villosum Harring & Myers and Lecane psammophila (Wisziewski). Brief accounts are presented on these and on Colurella hindenburgi Steinecke (new synonym: C. geophila Donner) and Trichocerca taurocephala (Hauer). Of the twenty-five morp hotaxa recorded, nine, all of which are psammobionts, are new to the B elgian fauna. Since, the rotifers inhabiting the psammon have not been studied sufficiently, their contribution to species diversity in fres hwater habitats is not recognised.