The rotifers are a phylum of tiny animals which are common in freshwater environments, such as ponds and puddles.[1] Some rotifers are free swimming, others move by inching along, and some are fixed.[2] A few species live in colonies.[3][4]
↑They live inside tubes or gelatinous holdfasts that are attached to a substrate
↑Clément P. and Wurdak E. 1991. Rotifera. In: Harrison F.W. and E.E. Ruppert eds. Microscopic Anatomy of Invertebrates vol 4. pages 219-297. Wiley-Liss, New York.
↑Nogrady, Thomas, Wallace R.L. & Snell T.W. 1993. Rotifera, vol. 1: biology, ecology and systematics. The Hague: SPB Academic Publishing.