Rastrimonas is a monotypic genus of parasitic alveolates in the phylum Apicomplexa.
It contains the single species Rastrimonas subtilis.
It was described in 2002 from the free-living cryptomonad Chilomonas paramaecium and placed in the new genus Cryptophagus.
[1] The following year this was renamed Rastrimonas.
[2]