Ahlstrom, E. H. (1943). A revision of the rotatorian genus Keratella with descriptions of three new species and five new varieties. Bulletin of the American Museum of Natural History, 80, 411-457, pl.35-42
362261
Ahlstrom, E. H.
1943
A revision of the rotatorian genus Keratella with descriptions of three new species and five new varieties.
Bulletin of the American Museum of Natural History