[1]
C. Fischer and W. H. Ahlrichs, “Cephalodella ungulata n.sp. (Monogononta: Notommatidae), a new rotifer species from North-West Germany, with notes on C. tenuiseta (Burn, 1890)”, Zootaxa, vol. 1378, no. 1, pp. 49–59, Dec. 2006.