TL;DR: A new species of Leucocytozoon with elongate gametocytes and unique morphology is described from a Thailand thrush, Zoothera marginata, and represents the first fusiform leucocy tozoid named from a passeriform.
Abstract: A new species of Leucocytozoon with elongate gametocytes and unique morphology is described from a Thailand thrush, Zoothera marginata, and represents the first fusiform leucocytozoid named from a passeriform. This species appears to be restricted with respect to geography and host.