Small oocyst: Less than 60 um long. Single-celled Embryo. Micropyle with polar-cap present in some species.
03a. Small oocyst: Less than 60 um long. Single-celled Embryo. Micropyle with polar-cap present in some species.

Large egg: Greater than 120 um long. Multi-celled Embryo. Operculum is sometimes difficult to observe.
03b. Large egg: Greater than 120 um long. Multi-celled Embryo. Operculum is sometimes difficult to observe.
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