Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-24T18:49:09.810Z Has data issue: false hasContentIssue false

Observations on the food and the gut pigment of the Polyopisthocotylea (Trematoda: Monogenea)

Published online by Cambridge University Press:  06 April 2009

J. Llewellyn
Affiliation:
Department of Zoology and Comparative Physiology, University of Birmingham

Extract

1. It has been shown by spectroscopic and histochemical methods that eight representative species of Polyopisthocotylea feed mainly on the blood of their hosts.

2. The blood is probably haemolysed fairly rapidly and subsequently absorbed by amoeboid ingestion, the globin moiety of the haemoglobin forming the chief nutriment of the parasite and the unaltered haematin being eliminated either by its discharge from epithelial cells into the gut lumen or by the sloughing off of intact epithelial cells.

3. In a more limited sample of skin-and cloaca-inhabiting Monopisthocotylea there was no evidence of a blood-feeding habit.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1954

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bonham, K. & Guberlet, J. E. (1937). Notes on Microcotyle sebastis Goto from Puget Sound. J. Parasit. 23, no. 3, 281–90.CrossRefGoogle Scholar
Dawes, B. (1940). Hexacotyle extensicauda n.sp., a monogenetic trematode from the gills of the Tunny (Thunnus thynnus L.). Parasitology, 32, 271–86.CrossRefGoogle Scholar
Dawes, B. (1946). The Trematoda. Cambridge University Press.Google Scholar
Gallien, L. (1935). Recherches expérimentales sur le dimorphisme évolutif et la biologie de Polystomum integerrimum Frohl. Trav. Sta. zool. Wimereux, 12, 1182.Google Scholar
Gomori, G. (1952). Microscopic Histochemistry. Chicago: University of Chicago Press.Google Scholar
Goto, S. (1895). Studies on the ectoparasitic trematodes of Japan. J. Coll. Sci. Tokyo, 8, 1273.Google Scholar
Hawk, P. B. (1938). Practical Physiological Chemistry, 11th ed.London: J. and A. Churchill.Google Scholar
Hoare, C. A. (1949). Handbook of Medical Protozoology. London: Baillière, Tindall and Cox.Google Scholar
Keilin, D. (1929). Cytochrome and respiratory enzymes. Proc. Roy. Soc. B, 104, 206–52.Google Scholar
Lison, L. (1936). Histochimie animale. Paris: Gauthier-Villars.Google Scholar
Sproston, N. G. (1945). The genus Kuhnia n.g. (Trematoda: Monogenea). An examination of the value of some specific characters, including factors of relative growth. Parasitology, 36, 176–90.CrossRefGoogle Scholar
Sproston, N. G. (1946). A synopsis of the monogenetic trematodes. Trans. Zool. Soc. Lond. 25, 185600.CrossRefGoogle Scholar
Stephenson, W. (1947). Physiological and histochemical observations on the adult Liver Fluke Fasciola hepatica L. II. Feeding. Parasitology, 38, 123–7.CrossRefGoogle Scholar
Thorpe, W. V. (1938). Biochemistry for Medical Students. London: J. and A. Churchill.Google Scholar
Wigglesworth, V. B. (1943). The fate of haemoglobin in Rhodnius prolixus (Hemiptera) and other blood-sucking arthropods. Proc. Roy. Soc. B. 131, 313–39.Google Scholar
Willier, B. H., Hyman, L. H. & Rifenburgh, S. A. (1925). A histochemical study of intra-cellular digestion in Triclad flatworms. J. Morph. 40, 299340.CrossRefGoogle Scholar