original descriptionMeyer, B. & Håkansson, H. (1996). Morphological variation of Cyclotella polymorpha sp. nov. (Bacillariophyceae). Phycologia, 35(1): 64-69, available online athttps://doi.org/10.2216/i0031-8884-35-1-64.1 page(s): p. 64; fig. 1-29 [details]