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A new schizogregarine, Mattesia orchopiae n.sp., in a flea of squirrels in England

Published online by Cambridge University Press:  06 April 2009

Biswapati Dasgupta
Biswapati Dasgupta
Affiliation:
Department of Parasitology, London School of Hygiene and Tropical Medicine, London
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Extract

A new schizogregarine Mattesia orchopiae, n.sp., parasitic in the flea Orchopeas wickhami, is described. The schizogony takes place in the fat-cells, while the gametogony and the sporogony occur in the Malpighian tubules. The micronuclear schizonts measured 13·7 × 11 μ. The trophozoites of the second schizogony measured 14·2 × 3·5 μ. The spores measured 10·5 × 7 μ.

After staining with toluidene blue metachromatic granules were found in the cytoplasm of the macronuclear schizonts and in the merozoites and the trophozoites resulting therefrom. Some of this metachromatic material could be removed by digestion with ribonuclease, while the rest of it persisted. Material stained with alcian blue was detected in the cytoplasm of the macronuclear schizonts.

I wish to thank Professor P. C. C. Garnham for encouragement and advice received during the conduct of this investigation, Mrs M. Vizoso and Miss K. Meedeniya for the supply of the fleas, the authorities of the British Museum for the identification of the fleas, and Sir W. P. MacArthur for his advice regarding the problem of nomenclature.

Type
Research Article
Information
Parasitology , Volume 48 , Issue 3-4 , November 1958 , pp. 375 - 381
Copyright
Copyright © Cambridge University Press 1958

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References

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