The Aikinetocystidae are a family of parasitic alveolates in the phylum Apicomplexa. The species in this family infect oligochetes.
This family was created in 1930 by Bhatia.
The species in this family infect the coelom of oligochetes. 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 oocyts are biconical (fusiform).
- Bhatia BL (1930) Synopsis of the genera and classification of haplocyte gregarines. Parasitol 22: 156-167