Ultrastructure of the spermatozoon of Apus apus (Linnaeus1758), the common swift (Aves; Apodiformes; Apodidae), withphylogenetic implications

Common Swift (Apus apus) Science Article 4

abstract

The spermatozoon of Apus apus is typical of non-passerines in many respects. Features shared with palaeognaths and the Galloanserae are the conical acrosome, shorter than the nucleus

Barrie G. M. Jamieson and Sandro Tripepi, Acta Zoologica (Stockholm) 86: 239-244 (October 2005)

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