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Development of Carmyerius exoporus Maplestone (Trematoda: Gastrothylacidae) in a snail host

Published online by Cambridge University Press:  06 April 2009

J. A. Dinnik  and
N. N. Dinnik
J. A. Dinnik
Affiliation:
East African Veterinary Research Organization, Muguga, Kenya
N. N. Dinnik
Affiliation:
East African Veterinary Research Organization, Muguga, Kenya
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Extract

The development of Carmyerius exoporus Maplestone in the snail Anisus nata-lensis Krauss is described with the emphasis laid on the redial and cercarial productivity of the rediae of the first and subsequent generations.

The miracidium gives rise to one sporocyst. From 25 to 32 germinal cells present in the miracidium, only six to eleven develop into embryo balls in the sporocyst and, of these, only three to nine develop into rediae of the first generation.

The redia of the first generation gives birth to daughter rediae and cercariae. No alternation in the development of redial and cercarial embryos was noted in the rediae of C. exoporus and a small number of redial embryos was observed to develop alongside the more numerous cercarial embryos throughout the life of the first generation rediae.

The rediae of the second and subsequent generations also give birth to daughter rediae and cercariae.

The cercariae leave their parent redia when they are still immature and continue the development in the snail tissue.

Type
Research Article
Information
Parasitology , Volume 50 , Issue 3-4 , November 1960 , pp. 469 - 480
Copyright
Copyright © Cambridge University Press 1960

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References

REFERENCES

Dinnik, J. A. & Dinnik, N. N. (1954). The life cycle of Paramphistomum microbothrium Fischoeder, 1901 (Trematoda: Paramphistomidae). Parasitology, 44, 285–99.CrossRefGoogle Scholar
Dinnik, J. A. & Dinnik, N. N. (1957). Development of Paramphistomum sukari Dinnik, 1954 (Trematoda: Paramphistomidae) in a snail host. Parasitology, 47, 209–16.CrossRefGoogle Scholar
Durie, P. H. (1953). The paramphistomes (Trematoda) of Australian ruminants. II. The life history of Ceylonocotyle streptocoelium (Fischoeder) Nasmark and of Paramphistomum ichikawai Fukui. Aust. J. Zool. 1, 193–222.CrossRefGoogle Scholar
Gretillat, S. (1959). Recherches sur le cycle evolutif de Carmyerius dollfusi Golvan, Chabaud et Gretillat, 1957 (Trematoda: Gastrothylacidae) à Madagascar. C.R. Acad. Sci., Paris, 248, 1873–5.Google Scholar
Mandahl-Barth, G. (1954). The freshwater molluscs of Uganda and adjacent territories. Ann. Mus. Congo beige, 8vo 32, 7–206.Google Scholar
Maplestone, P. A. (1923). A revision of the Amphistomata of mammals. Ann. Trop. Med. Parasit. 17, 113–212.CrossRefGoogle Scholar
Singh, K. S. (1958). A redescription and life-history of Gigantocotyle explanatum (Creplin, 1847) Nasmark, 1937 (Trematoda: Paramphistomidae) from India. J. Parasit. 44, 210–24.CrossRefGoogle ScholarPubMed
Solomon, S. G. (1932). On a collection of parasitic worms from East Africa. J. Helminth. 10, 209–30.CrossRefGoogle Scholar
Tandon, R. S. (1957). Life history of Gastrothylax crumenifer (Creplin, 1847). Z. wiss. Zool. 160, 39–71.Google Scholar