Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T17:58:55.098Z Has data issue: false hasContentIssue false

Dientamoeba fragilis n. g., n. sp., a new Intestinal Amoeba from Man

Published online by Cambridge University Press:  06 April 2009

Margaret W. Jepps
Affiliation:
Bathurst Student, Newnham College, Cambridge
Clifford Dobell
Affiliation:
Imperial College of Science.

Extract

It is now becoming generally recognized that there are three different amoebae which may be present in the human bowel—the harmless Entamoeba coli(Lösch) Schaudinn and “Entamoebanana Wenyon and O'Connor, and the pathogenic E. histolytica Schaudinn. We have discussed these three species in an earlier paper (1917), and there noted their chief distinctive characters. In the present paper we shall describe a fourth and much less common species which we have recently encountered. It differs in some respects so conspicuously from the others that it appears to us necessary to place it not only in a new species, but even in a new genus. We propose therefore the new name Dientamoeb fragilis for our amoeba, but we can discuss the question of nomenclature most conveniently after we have described the organism itself. This, therefore, we shall now do.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1918

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

Alexeieff, A. (1912). Sur les caractères cytologiques et la systématique des amibes du groupe limax (Naegleria nov. gen. et Hartmannia nov. gen.) et des amibes parasites des vertébrés (Proctamoeba nov. gen.). Bull. Soc. Zool. France, XXXVII. 55.Google Scholar
Alexeieff, A. (1912 a). Quelques remarques complémentaires sur la systématique des amibes du groupe limax. Bull. Soc. Zool. 149.Google Scholar
Alexeieff, A. (1912 b). Sur le genre Sappinia Dangeard. Bull. Soc. Zool. 157.Google Scholar
Barlow, N. (1915). Craigiasis. American Journ. Trop. Dis. Prev. Med., II. 680.Google Scholar
Calkins, G. N. (1912). Genera and species of Amoeba. Trans. XV Internal. Congr. Hyg. and Demogr., II. 287.Google Scholar
Chatton, E. (1912). Sur quelques genres d'amibes libres et parasites. Synonymies, homonymie, impropriété. Bull. Soc. Zool. France, XXXVII. 109.Google Scholar
Chatton, E. and Lalung-Bonnaire, (1912). Amibe limax (Vahlkampfia nov. gen.) dans l'intestin humain. Bull. Soc. Paihol. Exot., V. 135.Google Scholar
Craig, C. F. (1906). A new intestinal parasite of man: Paramoeba hominis. American Journ. Med. Sci., CXXXII. 214.CrossRefGoogle Scholar
Dangeard, P. A. (1896). Contribution à l'étude des Acrasiées. Le Botaniste, Série V.Google Scholar
Dobell, C. (1908). On the intestinal protozoan parasites of frogs and toads. Proc. Cambridge Phil. Soc. XIV. 428.Google Scholar
Dobell, C. (1909). Researches on the intestinal Protozoa of frogs and toads. Quart. Journ. Micro. Sci. LIII. 201.Google Scholar
Dobell, C. (1914). Cytological studies on three species of amoeba. Arch. f. Protistenk. XXXIV. 139.Google Scholar
Dobell, C. and Jepps, M. W. (1917). On the three common intestinal entamoebae of man, and their differential diagnosis. British Med. Journ. (1), 607.CrossRefGoogle ScholarPubMed
Doflein, F. (1909). Lehrbuch der Protozoenkunde. Jena.Google Scholar
Gruber, A. (1885). Studien über Amöben. Zeitschr. wiss. Zool. XLI. 186.Google Scholar
Hartmann, M. and Nägler, K. (1908). Copulation bei Amoeba diploidea n. sp. mit Selbständigbleiben der Gametenkerne während des ganzen Lebenszyklus. Sitz.-Ber. Gesellsch. naturf. Freunde, Berlin. No. 4.Google Scholar
Janicki, C. (1912). Paramoebenstudien. Zeitschr. wiss. Zool. CIII. 449.Google Scholar
Leidy, J. (1879). On Amoeba blattae. Proc. Acad. Nat. Sci. Philadelphia, XXXI. 204.Google Scholar
Nägler, K. (1909). Entwicklungsgeschichtliche Studien über Amöben. Arch. f. Protistenk. XV. 1.Google Scholar
Schaudinn, F. (1895). Über die Teilung von Amoeba binucleata Gruber. Sitz.-Ber. Gesellsch. naturf. Freunde, 130.Google Scholar
Schaudinn, F. (1896). über den Zeugungskreis von Paramoeba eilhardi n. g., n. sp. Sitz.-Ber. Kgl. preuss. Akad. wiss. Berlin, 31.Google Scholar
Swellengrebel, N. H. (1917). Observations on Blastocystis hominis. Parasitol. IX. 451.CrossRefGoogle Scholar
Wenyon, C. M. (1907). Observations on the Protozoa in the intestine of mice. Arch. f. Protistenk. Suppl. 1, 169.Google Scholar
Wenyon, C. M. and O'Connor, F. W. (1917). An inquiry into some problems affecting the spread and incidence of intestinal protozoal infections, etc. Journ. Roy. Army Med. Corps, XXVIII. 346.Google Scholar