Table 24 Key to the Haemoproteus species of Strigiformes birds^a

1 (2)

Volutin is conspicuous in fully grown gametocytes; it is arranged as compact roundish or circular granules, which tend to gather close to gametocyte ends (Fig. 25a-c). Fully grown gametocytes are halteridial (Fig. 25b) or close to circumnuclear, occasionally circumnuclear (Fig. 25c); halteridial forms (Fig. 25b) usually common

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H. syrnii (Fig. 25a–c) [3, 128,129,130]^b

2 (1)

Volutin is present, but is not conspicuous in fully grown gametocytes (Fig. 25d, e); it is dispersed more or less evenly (Fig. 25d, e), but not arranged as compact roundish or circular granules, which tend to gather close to gametocytes ends (Fig. 25a–c). Fully grown gametocytes are predominantly close to circumnuclear (Fig. 25d), often circumnuclear (Fig. 25e); halteridial forms (Fig. 25b) are rare

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H. noctuae (Fig. 25d, e) [3, 130]