Table 15 Key to the Haemoproteus species of Falconiformes birds^a

1 (2)

Gametocytes grow around the nuclei of infected erythrocytes (Fig. 16a–c). Advanced growing gametocytes are closely appressed to envelope of the infected erythrocytes (Fig. 16a). Growing gametocytes markedly displace the erythrocyte nuclei laterally (Fig. 16a). Outline of growing gametocytes vary from even to amoeboid. Fully grown gametocytes can completely encircle erythrocyte nuclei (Fig. 16b, c) and occupy all available cytoplasmic space in the erythrocytes, but broadly halteridial fully grown gametocytes also are present. Erythrocytes containing fully-grown circumnuclear gametocytes often assume roundish form (Fig. 16c)

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H. tinnunculi (Fig. 16a–c)[3, 99, 100]

2 (1)

Gametocytes grow around the nuclei of infected erythrocytes (Fig. 16d–f). Advanced growing gametocytes often do not adhere to envelope of erythrocytes (Fig. 16d). Growing gametocytes do not displace or only slightly displace the erythrocyte nuclei laterally (Fig. 16d, e). Growing gametocytes usually are highly irregular (Fig. 16d) or amoeboid in outline, with readily visible prominent and variable in form outgrowths (Fig. 16e). Fully grown gametocytes nearly completely (Fig. 16f) or even completely encircle the nuclei of infected erythrocytes, they usually do not occupy all available cytoplasmic space in the erythrocytes (Fig. 16f). Infected erythrocytes do not assume roundish form (compare Fig. 16c with Fig. 16f)

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H. brachiatus (Fig. 16d–f) [3, 100]