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Studies on some Sporozoa in Polychaete Worms

I. Gregarines of the Genus Selenidium

Published online by Cambridge University Press:  06 April 2009

Harendra Nath Ray
Harendra Nath Ray
Affiliation:
From the Zoology Department, King's College, University of London.
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Extract

1. The main facts in Brasil's (1907) account of the intracellular schizogony in Selenidium caulleryi from Protula tubularia have been confirmed. Early stages in the sporogony of this species are described now for the first time.

2. Intracellular schizogony is described for the first time in Selenidium mesnili Brasil from Myxicola infundibulum, and here also the early stages in sporogony are noted for the first time.

3. The life histories of Caullery and Mesnil's two unnamed species of Selenidium (now called S. spionis (Köll.) and S. foliatum n.sp.) from Scolelepis fuliginosa have been exhaustively studied. No schizogonic phase has been observed in either. The gametocysts, here described for the first time, are found to develop fully only after escape into the sea. The gametocysts of S. spionis are ovoid, 108μ x 60μ and contain spores with four sporozoites: those of S. foliatum are spherical, 70μ in diameter, and their spores contain eight sporozoites.

4. New or hitherto little known species of Selenidium are recorded from Cirratulus cirratus Müll., Branchiomma vesiculosum Mont., Sabella pavonina Sav., Pomatoceros triqueter L. and Terebella lepidoria Kühl, and the morphological characters of the trophozoites are described.

5. A discussion follows of the value of the diagnostic characters of the genus Selenidium. It is suggested that this genus requires drastic revision and will probably have to be dismembered. Stress is laid, however, on the occurrence in all the gregarines examined, and at all the observed stages of their development, of characteristic chromatic bodies at the anterior end, structures which have hitherto escaped the notice of most observers.

Type
Research Article
Information
Parasitology , Volume 22 , Issue 3 , June 1930 , pp. 370 - 398
Copyright
Copyright © Cambridge University Press 1930

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References

Brasil, L. (1907). Recherches sur le cycle évolutif des Selenidiidae, grégarines parasites des annélides polychétes. I. La schizogonie et la croissance des gamétocytes chez Selenidium caulleryi n.sp. Arch. f. Protistenk. 8, 370.Google Scholar
Brasil, L. (1909) Documents sur quelques sporozaires d'annélides. Arch. f. Protistenk. 16, 107.Google Scholar
Brasil, L. and Fantham, H. B. (1907). Sur l'existence chez les Sipunculides des schizo-grégarines appartenant à la famille Selenidiidae. C.R. Acad. Sci. Paris, 144, 518.Google Scholar
Calkins, G. N. (1926). The Biology of the Protozoa. Baillière. Tindall and Cox, London.Google Scholar
Caullery, M. and Mesnil, F. (1899). Sur quelques parasites internes des annélides. Trav. Stat. Zool. Wimereux, 7, 80.Google Scholar
Caullery, M. and Mesnil, F. (1901). Le parasitisme intracellulaire et la multiplication asexuée des grégarines. C.R. Soc. Biol. Paris, 52, 84.Google Scholar
Caullery, M. and Mesnil, F. (1905). Recherches sur les Haplosporidés. Arch. Zool. Exp. et Gén. 4, 101.Google Scholar
Caullery, M. and Mesnil, F. (1914). Sur l'existence des grégarines dicystidés chez les annélides polychètes. C.R. Soc. Biol. Paris, 77, 516.Google Scholar
Doflein, F. (1916). Lehrbuch der Protozoenkunde. Gustav Fischer, Jena.Google Scholar
Dogiel, V. (1907). Beiträge zur Kenntnis der Gregarinen. II. Schizocystis sipunculi, nov.sp. Arch. f. Protistenk. 7, 203.Google Scholar
Fantham, H. B. (1908). The schizogregarines: a review and a new classification. Parasitology, 1, 369.CrossRefGoogle Scholar
Giard, A. (1884). Note sur un nouveau groupe de protozaires parasites des annélides, et sur quelques points de l'histoire des grégarincs (Selenidium pendula). C.R. Assoc. franç. Avanc. Sri. Blois, p. 192.Google Scholar
Keilin, D. (1923). The structure and life history of Lipotropha n.g., a new type of schizogregarine parasitic in the fat body of a dipterous larva (Syptenus). Proc. Camb. Phil. Soc. (Biol. Sci.), 1, 18.Google Scholar
Kölliker, A. (1845). Die Lehre von der thierischen Zelle. Zeitschr. f. Wiss. Bot. 2, 46.Google Scholar
Kölliker, A. (1849). Beiträge zur Kenntnis niederer Thiere. Ueber die Gattung Gregarina L. Duf. Zeitschr. Wiss. Zool. 1, 1.Google Scholar
Labbé, A. (1899). Sporozoa. Das Tierreich, Lief. 5.Google Scholar
Lankester, E. Ray (1863). On our present knowledge of the Gregarinidae, with descriptions of three new species belonging to that class. Quart. J. Micro. Sci. 3, 83.Google Scholar
Léger, L. (1892). Recherches sur les grégarines. Tabl. Zool. 3, 1.Google Scholar
Léger, L. (1910). Les schizogrégarines des trachéates. II. La genre Ophryocystis. Arch. f. Protistenk. 18, 83.Google Scholar
Lühe, M. (1904). Bau und Entwicklung der Gregarinen. I. Teil. Die Sporozoiten, die Wachstumsperiode und die ausgebildeten Gregarinen. Arch. f. Protistenk. 4, 88.Google Scholar
Minchin, E. A. (1903). Sporozoa. Treatise on Zoology, ed. by Lankester, E. Ray, 1, fase. 2, p. 150.Google Scholar
Minchin, P. A. (1912). An introduction to the Study of the Protozoa. Edward Arnold, London.Google Scholar
Mingazzini, P. (1891). Gregarine monocistidee nuove o poco conosciute, del Golfo di Napoli. Rend. Accad. Line. 7, 467.Google Scholar
Mingazzini, P. (1893). Contributo alla conoscenza degli Sporozoi. Ric. Labor. Anat. Norm. Univers. Roma, 3, fasc. 1, p. 31.Google Scholar
Roskin, G. and Levinson, L. B. (1929). Die Kontraktilen und die Skelettelemente der Protozoen. I. Der Kontraktile und der Skelettapparat der Gregarinen. Arch. f. Protistenk. 66, 355.Google Scholar
Wenyon, C. M. (1926). Protozoology. II. Baillière, Tindall and Cox, London.Google Scholar