Hostname: page-component-84b7d79bbc-tsvsl Total loading time: 0 Render date: 2024-07-26T11:28:11.670Z Has data issue: false hasContentIssue false
  • English
  • Français

On a New Schizogregarine: Schizocystis legeri n. sp, an Intestinal Parasite of Dipterous Larvae (Systenus)

Published online by Cambridge University Press:  06 April 2009

D. Keilin
D. Keilin
Affiliation:
Beit Memorial Research Fellow. (From the Molteno Institute for Research in Parasitology, Cambridge.)
Get access Rights & Permissions [Opens in a new window]

Extract

The hosts of the new Schizogregarine herein described are the larvae of Dolichopodid flies: Syslenus adpropinquans Loew and S. scholtzii Loew which live in the decomposed sap or wood-pulp filling the wounds of Elm and Horsechestnut trees. The larvae used for the present study have been obtained from two trees only: an Elm tree standing on the Caius College playing ground at Newnham and a Horse-chestnut tree standing on the Downing site. The new parasite Schizocystis legeri n.sp., in company with a gregarine Dendrorhynchus systeni Keilin (1920), often completely fills the lumen of the host's midgut, but, even when heavily parasitised, the host does not show any sign of infection. The latter can only be detected when the larvae, slightly pressed between a slide and a coverslip, are examined under the microscope.

Type
Research Article
Information
Parasitology , Volume 15 , Issue 1 , March 1923 , pp. 103 - 108
Copyright
Copyright © Cambridge University Press 1923

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

Dogiel, V. (1907). Beiträge zur Kenntnis der Gregarinen II. Schizocystis sipuneuli nov.sp., Arch. f. Protist. VIII. 203–15. Pl. IX.Google Scholar
Fantham, H. B. (1908). The Schizogregarines: A review and a new classification. Parasitology, I. 369–412.CrossRefGoogle Scholar
Keilin, D. (1920). On two new Gregarines, Allantocystis dasyhelei, n.g., n.sp., and Dendrorhynchus n.g., n.sp., parasitic in the alimentary canal of the Dipterous larvae, Dasyhelen obscura and Systenus sp. Parasitology, XII. 154–58. Pl. X.CrossRefGoogle Scholar
Léger, L. (1906). Étude sur Taeniocystis mira Léger, grégarine métamérique. Arch. f. Protist. VII. 307–29. Pl. XII.Google Scholar
Léger, L. (1910). Les Schizogrégarines des Trachéates: II. Le genre Schizocystis. Arch. f. Protist. XVIII. 83–110. Pl. V–VI.Google Scholar
Machado, A. (1913). Über den Entwicklungskreis einer Gregarine, Schizocystis spinigeri aus Spiniger sp. Mem. do Inst. Oswaldo Cruz. V. 1–15. Pl. I–III.Google Scholar