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Quarterly Journal of Microscopical Science, Vol s3-96, 375-381, Copyright © 1955 by Company of Biologists

Amoeba taylorae n.sp

CATHERINE HAYES S.N.D., B.Sc, Ph.D.1

1 Research Department of Notre Dame College, and the Zoology Department, Glasgow University

In material collected from Tannoch Loch, Dunbartonshire, a large free-living, hitherto undescribed amoeba was found. Individual specimens vary in length from 420 to 500µ and in width from 70 to 140µ. Viewed over a black background this amoeba looks dense, white, and opaque, while in transmitted light it has a dusky, almost black, hue, due to the presence in the endoplasm of a large number of small crystals uniform in size, slender and pointed at both ends. There is always a uroid at the hinder end surrounded by bits of debris. The one large nucleus is without a karyosome but has masses of chromatin scattered through the nuclear substance. As a rule there is only one large contractile vacuole, but occasionally a few small ones may be seen at the hinder end. A certain number of nutritive spheres are always present. The author considers this amoeba to be a new species and names it Amoeba taylorae.






© The Company of Biologists Ltd 1955