On the frequent occurrence of vegetable parasites in the hard structures of animals / by Professor A. Kölliker.

  • Kölliker, Albrecht, 1817-1905.
Date:
[1859]
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Licence: Public Domain Mark

Credit: On the frequent occurrence of vegetable parasites in the hard structures of animals / by Professor A. Kölliker. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    IProm the Proceedings of the Royal Society, No. 36, 1859.] On the frequent occurrence of Vegetable Parasites in the Hard Structures of Animals. By Professor A. Kolliker, of Wiirzburg. Communicated by Dr. Sharpky, Sec. R.S. Received May 30, 1859. As far as I am aware, Quekctt has been the first to point out that vegetable parasites, viz. Conferva, occur frequently in the skeleton of Corals (Lectures on Histology, vol. ii. p. 1.53. fig. 78. and p. 276) ; but although he mentions in the same place that the tuhuli described by Carpenter in the shells of Bivalves have also a great resemblance with Confervce, he did not venture any further step, and he adheres to the view of Carpenter, who regards them as a typical structure. Some years later. Rose (On Parasitic Borings in Fossil Fish- Scales, Transactions of the Microscopical Society of London, vol. x. p. 7, 1855) discovered a pecuhar tubular structure in fossil fish- scales, which he regarded as being occasioned by parasites, and possibly by Infusoria, but he was not able to give any good proof of this hypothesis. The same must be said of E. Claparede (Miill. Archiv, 1857, p. 119), who found similar canals in the test of Neritina fluviatilis, and showed that they do not really belong to the shell, without being happier in determining the nature of the parasite, only suggesting that it might possibly be a sponge. Such was the state of things, when Prof. Wedl of Vienna and I, Independently of each other, took up the question. The observations [f Wedl, which concern only the parasites of the shells of Bivalve id Gasteropods, were commimicated to the Vienna Academy on the tub of October, 1858, and are therefore previous to my own, which ;re presented to our Wurzburg Society on the 14th of May, 1859 ; lit I received Wedl'8 memoir only on the IGth of May, and may lerefore say that my observations, which are also extended o\er many |ore groups of animals, were quite independent of those of the istrian microscopist. This being the case, it may be regarded as a »d proof of the correctness of our observations and the truth of r conclusions, that we agree m the principal facts, there being