Plasmodium ovale

The red arrow shows a ring, whereas blue arrows mark trophozoites in this thick blood smear.

A ring in a thin blood smear. The infected erythrocyte is slightly oval-shaped and fimbriated, normal in size.

A ring in a thin blood smear. The infected erythrocyte is oval, enlarged and fimbriated.

Several trophozoites are present in this thin blood smear. The red arrow shows a fimbriated trophozoite, whereas blue arrows mark compact to slightly irregular infected erythrocytes. James’ stippling is visible in all present trophozoites.

This developing trophozoite in a thin blood smear is slightly enlarged and oval-shaped and shows James’ stippling, which is darker than Schüffner’s dots and is usually present in all stages.

A Plasmodium ovale trophozoite with prominent fimbriation and James’ stippling in a thin blood smear.

This gametocyte in a thin blood smear is round to oval and nearly fills the erythrocyte. Its red nucleus and James’ stippling also can be seen.

This gametocyte in a thin blood smear is round to oval and nearly fills the erythrocyte. Its red nucleus and James’ stippling also can be seen.