Information on the distribution of 59 dicranophorid rotifers from dive
rse habitats in south and central Sweden was analyzed to reveal their
relationships to their substrate. They were mainly frequenting macroph
ytic vegetation. Even some species which have previously been regarded
as 'psammobionts' were mostly or only found on periphytic substrates.
Like other raptorial predators, dicranophorids have a very broad ecol
ogical range.