Anthemosoma
Anthemosoma is a genus of parasites of the phylum Apicomplexa. There is only one species recognised in this genus - a parasite of mammals. History

The genus was described in 1969 by Landau, Boulard and Housin. Description 
Although polar rings and rhoptries are present other typical Apicomplexian features including conoid, flagellae, oocysts, sporocysts and pseudocysts are absent. The species parasitises erythrocytes. It is heteroxenous with merogony and gamogony in the vertebrate host. Fertilization and sporogony in the invertebrate host. Meronts: These occur in erythrocytes. 5-32 merozoites are produced by budding. Gamonts: These are spheroid or ovoid. References 

Piroplasmida
Apicomplexa genera
Parasites of mammals