Abstract
A new species, Pygidiopsis ardeae (Heterophyidae, Pygidiopsinae), is described, using both light and stereoscan electron microscopy, from the grey heron Ardea cinerea L. (Ardeidae) from Denmark. The species has previously (as P. genata) been recorded in dogs fed on plaice and flounders from Danish waters. It developed experimentally in domestic chickens and pigeons. No species of Pygidiopsis Looss, 1907 has previously been described from birds in northern Europe. P. ardeae is very similar to the type-species, P. genata Looss, 1907, from Egypt, but the two species have different life-cycles. P. ardeae differs from P. piclaumoreli Dollfus & Capron, 1958 from Senegal in its size and the disposition of vitelline follicles. P. plana (Linton, 1928) Price, 1933, from a green heron from the eastern USA, is larger than P. ardeae and has a wide, sac-like prepharynx.
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Køie, M. Pygidiopsis ardeae n. sp. (Digenea: Heterophyidae: Pygidiopsinae) in the grey heron Ardea cinerea L. from Denmark. Syst Parasitol 15, 141–149 (1990). https://doi.org/10.1007/BF00009992
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DOI: https://doi.org/10.1007/BF00009992