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Studies on the excretory system of amphistome parasites of ruminants

II. The genera Gastrothylax Poirier, 1883, and Fischoederius Stiles & Goldberger, 1910

Published online by Cambridge University Press:  06 April 2009

R. S. Tandon
Affiliation:
Department of Zoology, Lucknow University, Lucknow, India

Extract

The excretory systems of Gastrothylax crumenifer, Fischoederius elongatus and F. cobboldi have been described. In all three species it shows the characteristic, more or less H-shaped, pattern of the amphistome excretory system.

The difference between the systems in the three species lies in the nature of the branches of the anterior portions of the longitudinal excretory ducts, in the transverse excretory ducts and the branches received by them and in the number of flame cells at the ends of the capillaries.

The main longitudinal excretory ducts run internal to the intestinal caeca in G. crumenifer and F. cobboldi, while in F. elongatus they run almost external to the caeca and maintain this position even in the posterior half of the body, where the caeca are not present.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1961

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References

REFERENCES

Stiles, C. W. & Goldberger, J. (1910). A study of the anatomy of Watsonius (n.g.) watsoni of man and of nineteen allied species of mammalian trematode worms of the superfamily Paramphistomoidea. Bull. (60) Hyg. Lab., U.S. Publ. Hlth and Mar.-Hosp. Serv., pp. 1259.Google Scholar
Tandon, R. S. (1957). Life history of Gastrothylax crumenifer (Creplin, 1647). Z. wiss. Zool. 160 (1/2), 3971.Google Scholar
Tandon, R. S. (1958 a). Studies on the excretory system of amphistomes of ruminants: I. Carmyerius spatiosus (Stiles & Goldberger, 1910). Proc. Nat. Acad. Sci. India, B, 28 (5), 340–4.Google Scholar
Tandon, R. S. (1958 b). Development and morphology of the cercaria of an amphistome, Fischoederius elongatus (Stiles & Goldberger, 1910), recovered from a naturally infected Limnaea luteola at Lucknow. Zool. Anz. 160 (7/8), 200–6.Google Scholar