Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-27T22:05:26.514Z Has data issue: false hasContentIssue false

On Variations in size of the Nematode Worm Rhabditis succaris n. sp., produced by Different Culture Media

Published online by Cambridge University Press:  18 November 2009

Phyllis A. Clapham
Affiliation:
From the Department of Helminthology, London School of Hygiene and Tropical Medicine.

Extract

(1) During the routine examination of the fauna of samples of clinker removed from the filter beds of Brent Sewage Farm several species of Rhabdilis were met with, one at least of which cannot be relegated to any species as yet described. A new species is therefore suggested for its reception and the name succaris has been given to suggest its origin from the sewage farm.

(2) An account is given of its structure. While being typical for the genus, the lips and bursal rays do not agree with any known species.

(3) Two distinct strains were reared by means of different culture media, differing quite definitely in length. A thousand worms were measured and these differences were found to remain very constant. The relative measurements have not been materially altered.

(4) The length of the large worms has been diminished by means of a return to the original food.

(5) The cultivated strain shows greater variability than the original strain.

(6) Two graphs and a table summarising the results are shown.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 1930

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

Cobb, N. A., 1918.—“Filter Bed Nemas. Contributions to the Science of Nematology,” VII.Google Scholar
Conte, A., 1900 A.—“De l'influence du milieu nutritif sur le développement des Nématodes libres,C. R. Soc. Biol., Paris, LII. (W.L. 6630.)Google Scholar
Conte, A., 1900 B.—“Sur les conditions de ponte des Nématodes,C. R. Soc. Biol., Paris, LII. (W.L. 6630.)Google Scholar
Goodey, T., 1930.—“On the Presence of Fats in the intestinal wall of Nematodes,J. Helm., vol. VIII., p. 2.Google Scholar
Man, J. D. de, 1884.—“Die frei in der reinen Erde und in süssen Wasser lebenden Nematoden der Niederlandischen Fauna.”Google Scholar
Maupas, E., 1899.—“La mue et l'enkystement chez les Nématodes,Arch. zool, exp. gén., (3) 7. (W.L. 1915.)Google Scholar
Maupas, E., 1900.—“Modes et formes de reproduction des Nématodes,Arch. zool. exp. gén., (3) 8. (W.L. 1915.)Google Scholar
Micoletzky, H., 1921.—“Die freilebenden Erd-Nematoden,Arch. Naturgesch., Jahrg. 87, Abt. A. Heft, 89. (W. L. 1782.)Google Scholar
Peters, B. G., 1930.—“A Biological Investigation of Sewage,J. Helm., vol. VIII., p. 3.Google Scholar
Peters, B. G., 1930.—“Some Nematodes met with in a Biological Investigation of Sewage,J. Helm., vol. VIII., p. 3.Google Scholar