''Grasseella'' is a genus in the

phylum In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature f ...

Apicomplexa.

History

This genus was created by Tuzet and Ormières in 1960.Tuzet O, Ormieres R (1960) ''Grasseella microcosmi'' n. g. n. sp. coccidie parasite de ''Microcosmus sulcatus'' Coqueb. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences 250: 2641-2643

Taxonomy

There is one species recognised in this genus.

Description

This species infects an ascidian worm ('' Microcosmus sulcatus''). The

oocyst Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism i ...

s have many sporocysts, each with 2 sporozoites.

References

Apicomplexa genera Monotypic SAR supergroup genera Conoidasida {{Apicomplexa-stub