1. Bryce, D.-1924-The Rotifera and Gastrotricha of Devil's and Stump Lakes, N. Dakota, U. S. A. J. Quekett Micr. Club, 15: 81?108, 3 figs.
2. Bryce, D.-1928-Rotatoria. Scott. mar. Biol. Ass. Annual Report, 1927?1928: 11?12.
3. Galliford, A. L.-1945-A Contribution to the Rotifer Fauna of the Liverpool Area. The Liverpool Nat. Field Club Proc., 1945: 10?16, 1 pl.
4. Galliford, A. L.-1949-Rotifera of Lancashire and Cheshire. The Lancashire and Cheshire Fauna Committee, Report no. 2, 1948?49: 108?114.
5. Galliford, A. L.-1953-Rotifera of Lancashire and Cheshire, Report no 3; The Lancashire and Cheshire Fauna Committee, Thirtieth Report: 69?78.