| belgium | | cyclotella sp. 119 | species | 1 | 0 |
| china | | cyclotella cryptica | species | 1 | 0 |
| china | | cyclotella meneghiniana | species | 21 | 0 |
| china | hubei | cyclotella meneghiniana | species | 15 | 0 |
| china | sichuan | cyclotella meneghiniana | species | 2 | 0 |
| ethiopia | | cyclotella meneghiniana | species | 2 | 0 |
| france | | cyclotella meneghiniana | species | 2 | 0 |
| germany | | cyclotella choctawhatcheeana | species | 1 | 0 |
| germany | bremen | cyclotella cf. scaldensis g18w42 | species | 1 | 0 |
| germany | bremen | cyclotella cf. scaldensis g18w53 | species | 1 | 0 |
| germany | bremen | cyclotella cf. scaldensis g1w11 | species | 1 | 0 |
| germany | bremen | cyclotella meneghiniana | species | 33 | 0 |
| germany | bremen | cyclotella pseudostelligera | species | 8 | 0 |
| germany | lower saxony | cyclotella meneghiniana | species | 31 | 0 |
| india | | cyclotella meneghiniana | species | 1 | 0 |
| india | | cyclotella sp. | species | 1 | 0 |
| india | | cyclotella sp. mbtd-cmfri-s044 | species | 1 | 0 |
| india | | cyclotella sp. mbtd-cmfri-s052 | species | 1 | 0 |
| india | | cyclotella sp. mbtd-cmfri-s079 | species | 1 | 0 |
| india | | cyclotella sp. mbtd-cmfri-s080 | species | 1 | 0 |
| india | | cyclotella sp. mbtd-cmfri-s084 | species | 1 | 0 |
| indonesia | west java province | cyclotella sp. | species | 2 | 0 |
| indonesia | west java province | cyclotella striata | species | 8 | 0 |
| israel | | cyclotella meneghiniana | species | 1 | 0 |
| italy | tuscany region | cyclotella cryptica | species | 1 | 0 |
| luxembourg | | cyclotella meneghiniana | species | 4 | 0 |
| macedonia | | cyclotella meneghiniana | species | 2 | 0 |
| malaysia | | cyclotella meneghiniana | species | 1 | 0 |
| mongolia | | cyclotella meneghiniana | species | 2 | 0 |
| poland | pomorskie province | cyclotella meneghiniana | species | 2 | 0 |
| russia | | cyclotella meneghiniana | species | 20 | 0 |
| south korea | | cyclotella choctawhatcheeana | species | 2 | 0 |
| south korea | | cyclotella meneghiniana | species | 5 | 0 |
| south korea | | cyclotella pseudostelligera | species | 1 | 0 |
| south korea | | cyclotella sp. | species | 2 | 0 |
| south korea | | cyclotella striata | species | 2 | 0 |
| spain | | cyclotella atomus var. atomus | varietas | 4 | 0 |
| spain | | cyclotella cryptica | species | 2 | 0 |
| spain | | cyclotella meneghiniana | species | 2 | 0 |
| turkey | | cyclotella cryptica | species | 1 | 0 |
| united kingdom | | cyclotella sp. ccap 1070/4 | species | 1 | 0 |
| united kingdom | scotland | cyclotella meneghiniana | species | 2 | 0 |
| united states | | cyclotella cryptica | species | 1 | 0 |
| united states | arizona | cyclotella pseudostelligera f. parva | forma | 1 | 0 |
| united states | arizona | cyclotella wolterecki | species | 1 | 0 |
| united states | california | cyclotella choctawhatcheeana | species | 4 | 0 |
| united states | florida | cyclotella cryptica | species | 2 | 0 |
| united states | iowa | cyclotella pseudostelligera | species | 1 | 0 |
| united states | louisiana | cyclotella meneghiniana | species | 2 | 0 |
| united states | massachusetts | cyclotella cryptica | species | 5 | 0 |
| united states | north dakota | cyclotella quillensis | species | 6 | 0 |
| vietnam | | cyclotella meneghiniana | species | 1 | 0 |
| vietnam | ha noi city | cyclotella meneghiniana | species | 2 | 0 |