| Stygiellidae | |
|---|---|
| |
| Stygiella incarcerata under light microscopy stained with protargol | |
| |
| Velundella nauta under DIC microscopy | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Class: | Jakobea |
| Order: | Jakobida |
| Suborder: | Andalucina |
| Family: | Stygiellidae Pánek, Táborský & Čepička 2015[1] |
| Type genus | |
| Stygiella Pánek, Táborský & Čepička 2015
| |
| Genera[1] | |
| Diversity | |
| 6 species | |
| |
| Stygiellidae distribution map.[1] | |
Stygiellidae is a family of free-living marine flagellates belonging to the order Jakobida, a deep-branching lineage within the eukaryotic supergroup Discoba. They are unicellular organisms that commonly inhabit anoxic, sulfide-rich and ammonium-rich marine habitats worldwide.[1]