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Observations on the Flagellates of the Genera Trichomonas and Eutrichomastix

Published online by Cambridge University Press:  06 April 2009

B. M. Das Gupta
B. M. Das Gupta
Affiliation:
Assistant Professor of Protozoology, Calcutta School of Tropical Medicine
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Extract

Three pure-line strains started from single individuals, 2 of Trichomonas and 1 of Eutrichomastix, all from snakes, were isolated from mixed cultures. These strains, and another of Eutrichomastix from a chamaeleon, were under observation for periods of from 3 to 10 weeks.

The Eutrichomastix of snakes does not differ from that of the chamaeleon in any essential point, and neither developed an undulating membrane at any time during this prolonged period of observation.

The Trichomonas of the grass-snake is morphologically distinct from that of the boa. Trichomonas of the boa has an ill-developed undulating membrane with only a few shallow waves, and may simulate a Eutrichomastix owing to the accidental detachment of the bordering flagellum.

Trichomonas from snakes, as from most other hosts, readily feeds upon starch granules, whereas none of the Eutrichomastix were found to ingest unaltered starch.

Eutrichomastix from snakes and the chamaeleon never develops an undulating membrane and does not assume a Trichomonas form.

From these observations it can be definitely concluded that Trichomonas and Eutrichomastix are generically distinct.

Type
Research Article
Information
Parasitology , Volume 28 , Issue 2 , March 1936 , pp. 195 - 201
Copyright
Copyright © Cambridge University Press 1936

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