Grasseella

Grasseella is a genus in the phylum Apicomplexa.

History
This genus was created by Tuzet and Ormières in 1960.

Taxonomy
There is one species recognised in this genus.

Description
This species infects an ascidian worm (Microcosmus sulcatus).

The oocysts have many sporocysts, each with 2 sporozoites.