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| Gonyostomum | |
|---|---|
|  | |
| Scientific classification   | |
| Domain: | Eukaryota | 
| Clade: | Sar | 
| Clade: | Stramenopiles | 
| Phylum: | Ochrophyta | 
| Class: | Raphidophyceae | 
| Order: | Chattonellales | 
| Family: | Vacuolariaceae | 
| Genus: | Gonyostomum Diesing 1866 | 
| Type species | |
| Gonyostomum semen (Ehrenberg 1853) Diesing 1866 | |
| Species | |
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| Synonyms | |
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Gonyostomum is a genus of freshwater algae in the class Raphidophyceae. They include the species Gonyostomum semen , which causes nuisance algal blooms.