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Fig. 5 | Malaria Journal

Fig. 5

From: Keys to the avian Haemoproteus parasites (Haemosporida, Haemoproteidae)

Fig. 5

Morphological features of gametocytes, which are used for identification of Haemoproteus species parasitizing Apodiformes birds. Macrogametocytes (a–e, g, h) and microgametocyte (f) Haemoproteus archilochus (a, b), H. witti (c, d), H. apodus (e, f) and H. trochili (g, h). Note the circumnuclear (a, b) and broadly halteridial (c, d) forms of fully grown gametocytes in H. archilochus (a, b) and H. witti (c, d), respectively. Gametocytes of H. apodus (e, f) and H. trochili (g, h) are microhalteridial in form. Haemoproteus apodus is readily distinguishable due to presence of numerous dumbbell-like growing gametocytes (e, f). Long simple arrows—host cell nuclei. Short simple arrows—parasite nuclei. Simple arrowheads—pigment granules. Simple wide long arrows—unfilled space between growing gametocytes and envelope of infected erythrocyte. Other explanations are given in the text

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