Hi I'm looking for that reference in pdf , I'm trying to do the diagnosis for some rotifer species (Flosculariaceae ) from a brackish tropical lagoon. I accept any other recommendation of references for id.
@Elian, try this website: http://cfb.unh.edu/cfbkey/html/species.html
I like it because it has a key to find taxa identifications as well as a page that will give you specific pictures if you know the names (Genus species) of specific organisms you want to see. They also give specific characters to look for to identify taxa to species. I hope this helps. Our lab has an old book to identify rotifers and if I can get it photocopied I will send it to you.