Monocystis lumbrici gametocyst with enclosed spindle shaped oocysts or spores.  Each "spore" contains 8 sporozoites.  100x
 

Monocystis lumbrici oocysts  or "spores" released from fractured gametocyst.  In vivo.  400x
 

Monocystis lumbrici from the earthworm seminal vesicles.  In vivo.  This is a gametocyst which at this stage in the life cycle contains numerous oocysts or "spores".  Each of the spores contains 8 haploid sporozoites.  400x