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XII.—On the Septal and Pharyngeal Glands of the Microdrili (Oligochæta)

Published online by Cambridge University Press:  06 July 2012

J. Stephenson
J. Stephenson
Affiliation:
Lecturer in Zoology, Edinburgh University.
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Extract

In 1917 I published an account (16) of the so-called pharyngeal gland-cells of earthworms, unevenly but intensely staining cells (whence the name “chromophil” which I gave to them) which form lobular masses on the pharynx, and smaller aggregations in other places in the anterior segments. I came to the conclusion that the cells were not, as was usually held, epithelial in origin—were not cells which had fallen out of the epithelial layer while still retaining their connection with the pharyngeal cavity by means of a long neck functioning as a ductule. On the contrary, they were, I believed, mesoblastic in origin, and congeneric with the peritoneum; and were devoid of ducts leading into the pharynx.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 53 , Issue 1 , March 1922 , pp. 241 - 264
Copyright
Copyright © Royal Society of Edinburgh 1922

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References

References to Literature

(1)Beddard, F. E., A Monograph of the Order of Oligochæta, Oxford, 1895.CrossRefGoogle Scholar
(2)Dixon, G. C., “Tubifex,” L.M.B.G. Memoir, No. xxiii, 1915.Google Scholar
(3)Hesse, R., “Beiträge zur Kenntnis des Baues der Enchytraeiden,” Zeit. f. wiss. Zool., vol. lvii, 1893.Google Scholar
(4)Hesse, R., “Über die Septaldrüsen der Oligochaeten,” Zool. Anz., vol. xvii, 1894.Google Scholar
(5)Hesse, R., “Zur vergleichenden Anatomie der Oligochaeten,” Zeit. f. wiss. Zool., vol. lviii, 1894.Google Scholar
(6)Keilin, D., “On the Pharyngeal or Salivary Gland of the Earthworm,” Quart. Journ. Mic. Sci., vol. lxv, 1920.Google Scholar
(7)Michaelsen, W., Untersuchungen über Enchytraeus möbii Mich., und andere Enchytraeulen, Kiel, 1886.Google Scholar
(8)Michaelsen, W. “Die Oligochäten der deutschen Tiefsee-Expedition,” in Wissenschaftliche Ergebnisse der deutschen Tiefæe Expedition, Jena, 1902.Google Scholar
(8A)Michablsen, W., “Die Oligochäten der deutschen Südpolar-Expedition,” Ergebnisse, iii, 1905.Google Scholar
(9)Michablsen, W. “Hamburgische Elb-Untersuchung: IV. Oligochaeten,” Mitt. Mus. Hamburg, vol. xix, 1903.Google Scholar
(10)Michablsen, W. “Oligochaeta,” in Beiträge zur Kenntnis der Land- und Süsswasser fauna Deutsch-Südwestafrikas, Hamburg, 1914.Google Scholar
(11)Nomura, E., “On Two Species of Aquatic Oligochaeta,” Journ. Coll. Sci. Tokio, vol. xxxv, 1913.Google Scholar
(12)Nomura, E. “On the Aquatic Oligoehæte Monopylephorus limosus (Hatai),” Journ. Coll. Sci. Tokio, vol. xxxv, 1915.Google Scholar
(13)Stephenson, J., “On Branchiura sowerbyi Beddard, and on a new species of Limnodrilus with distinctive characters,” Trans. Roy. Soc. Edin., vol. xlviii, 1912.Google Scholar
(14)Stephenson, J. “On Hæmonais laurentii, n. sp., a representative of a little-known genus of Naididæ,” Trans. Roy. Soc. Edin., vol. 1, 1915.Google Scholar
(15)Stephenson, J. “Fauna of the Chilka Lake: Oligochæta. Supplementary Report,” Mem. Ind. Mus., vol. v, 1917.Google Scholar
(16)Stephenson, J. “On the so-called Pharyngeal Gland-cells of Earthworms,” Quart. Journ. Mic. Sci., vol. lxii, 1917.Google Scholar
(17)Stirrup, H. H., “A Descriptive Study of an Oligochæte Worm of the Family Enchytræidæ; with an Appendix on certain Commensal Protozoa,” Proc. Zool. Soc., i, 1913.Google Scholar
(18)Ude, H., “Beiträge zur Kenntnis der Enchytraeiden und Lumbriciden,” Zeit. f. weiss. Zool., vol. lxi, 1895.Google Scholar
(19)Vejdovsky, F., System und Morphologie der Oligochaeten, Prag, 1884.Google Scholar