The sporoplasm, representing the sporozoite, is always single.
Spores with two polar-capsules, and without an iodinophilous vacuole in the sporoplasm.
Hence it is possible that the Myxosporidian sporoplasm really consists of two, incompletely-divided (sister) germs.
Spores having the form of an anchor with six arms; sporoplasm plasmodial, situate near the anterior pole of the spore.
The sporoplasm may be either a plasmodial mass, with numerous nuclei, or may form a certain number of uninuclear sporozoites.