Fischer, C., & Ahlrichs, W. H. (2006). Cephalodella ungulata n.sp. (Monogononta: Notommatidae), a new rotifer species from North-West Germany, with notes on C. tenuiseta (Burn, 1890). Zootaxa, 1378(1), 49–59. https://doi.org/10.11646/zootaxa.1378.1.4