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Scientific classification e
Domain: Eukaryota
(unranked): Diaphoretickes
(unranked): SAR
Infrakingdom: Alveolata
Phylum: Apicomplexa
Class: Conoidasida
Subclass: Coccidia
Order: Agamococcidiorida
Family: Rhytidocystidae
Levine, 1979
Genus: Rhytidocystis
Henneguy, 1907

See text



Rhytidocystis is a genus of apicomplexans.[1] It is the only genus within the monotypic family Rhytidocystidae.[2] The species of this genus are parasitic protozoa found in marine annelids.


There are four species known in this genus:


  1. ^ Leander BS, Ramey PA (2006). "Cellular identity of a novel small subunit rDNA sequence clade of apicomplexans: description of the marine parasite Rhytidocystis polygordiae n. sp. (host: Polygordius sp., Polychaeta)". Journal of Eukaryotic Microbiology. 53 (4): 280–291. doi:10.1111/j.1550-7408.2006.00109.x. PMID 16872296.
  2. ^ Levine, ND (1979). "Agamococcidiorida ord. n. and Rhytidocystidae fam. n. for the coccidian genus Rhytidocystis Henneguy, 1907". J Protozool. 26 (2): 167–8. doi:10.1111/j.1550-7408.1979.tb02756.x.