Goniomonas
| Goniomonas | |
|---|---|
| Scientific classification | |
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| Genus: | Goniomonas von Stein 1878 | 
| Type species | |
| Goniomonas truncata (Fresenius 1858) von Stein 1878 | |
| Species | |
| See text | |
Goniomonas is a genus of Cryptomonads and contains five species. It is a genus of single-celled eukaryotes, including both freshwater and marine species. It lacks plastids, which is very unusual among all of the Cryptophyte genera. It may reflect one of only a small number of times that the Cryptophytes evolved into freshwater habitats. Goniomonas seems to have a number of freshwater relatives which have not yet been cultured and named.