This article relies largely or entirely on a single source .(February 2025)  | 
| Aikinetocystidae | |
|---|---|
|  Scientific classification   | |
| Domain: | Eukaryota | 
| Clade: | Sar | 
| Clade: | Alveolata | 
| Phylum: | Apicomplexa | 
| Class: | Conoidasida | 
| Order: | Eugregarinorida | 
| Suborder: | Aseptatorina | 
| Family: |  Aikinetocystidae  Bhatia, 1930  | 
| Genera | |
The Aikinetocystidae are a family of parasitic alveolates in the phylum Apicomplexa. The species in this family infect oligochaetes.
This family was created in 1930 by Bhatia. [1]
Two genera are recognised in this family - Aikinetocystis and Nellocystis .
The species in this family infect the coelom of oligochaetes. They are spread by the oral-faecal route. The trophozoite is aseptate. The gamont is sac-like and extends at one end into two branches which divide dichotomously, forming eight to 16 secondary branches bearing groups of suckers. The oocysts are biconical (fusiform).