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On the environment of Polymorphus minutus (Acanthocephala) in ducks

Published online by Cambridge University Press:  06 April 2009

D. W. T. Crompton
Affiliation:
The Molteno Institute, University of Cambridge

Extract

Crompton & Harrison (1965) complied from the literature a list of 84 species of bird which have been reported to be final hosts of Polymorphus minutus and since then, the parasite has been found in the American White-winged Scoter (Melanitta deglandi) and the Chestnut Teal (Anas castanea) by Schmidt (1965) and Avery (1966) respectively. Unless detailed investigations are undertaken, there is no way of knowing how many of these birds from true hosts in which P. minutus can reproduce successfully. P. minutus has also been reported from the muskrats (Ondata zibethica) which Golvan (1961) considered to be an accidental host and I have recovered seven living specimens of P. minutus 48 h after forcibly feeding 20 cystacanths of the parasite contained in Gammarus pulex to a female Wistar rat. The seven worms were firmly attached to the rat's intestinal wall and all were located in the posterior half of the intestine.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1969

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