DISTRIBUTION OF BRACHIONIDAE (ROTIFERA, MONOGONONTA) IN INNER MONGOLIAN WATERS

Two-hundred and fourty-six freshwater and saline-alkaline waters in In ner Mongolia, P.R.China were surveyed for Brachionidae. Twenty-nine br achionid morphospecies (33 taxa) are recorded, four are new to China. Some data on their distribution, and comments on selected tars are pro vided. Brachionus asplanchnoides (stat.nov.) is reinstated at the morp hospecies level. We suggest that this taxon may be used in aquaculture , considering that, by its large size, it extends the size range of br ackish-water Rotifera potentially available as food for fish larvae.