Gregarina polymorpha in syzygy, taken with the scanning electron microscope.
The upper half (primary trophozoite) consists of the anterior protomerite and
posterior deutomerite (although both only represent one cell). The lower
half (the satellite) reveals the protomerite of the satellite embedded in the posterior portion
of the deutomerite of the primary trophozoite. The ridges lengthwise along
the bodies are the epicytic folds. 1000x