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Further notes on the fresh-water shells of Tasmania (With a description of New Species)

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Johnston, Robert Mackenzie (1878) Further notes on the fresh-water shells of Tasmania (With a description of New Species). Papers & Proceedings and Report of the Royal Society of Tasmania. pp. 19-29.

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Abstract

The publication of the Rev. J. E. Tenison-Woods' paper,
in enabhng collectors to determine and compare the catalogued
fresh water species with those in their immediate
neighbourhood, has been most valuable, and has given a
healthy impetus to local observation. As the list, however,
was only published by the Society but a year ago, it cannot
be expected that any considerable addition could have been
made to our knowledge in this particular study since that
time. Still, as the types for the various species were mainly
derived from southern habitats, it is possible that some
varieties peculiar to northern Tasmania may have escaped
notice, and consequently there may be a difficulty in the
exact specific determination of certain of our northern
varieties. Indeed, I find, with respect to Physa, Lymnea, and
Bithynella, that the difficulties in the way of classification are
very great, because of their extreme variability even in the
same habitat. This difficulty is, unfortunately, increased
where the full range of variability may have escaped the
classifier's notice.

Item Type: Article
Keywords: Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title: Papers & Proceedings and Report of the Royal Society of Tasmania
Page Range: pp. 19-29
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

In 1843 the Horticultural and Botanical Society of Van Diemen's Land was founded and became the Royal Society of Van Diemen's Land for Horticulture, Botany, and the Advancement of Science in 1844. In 1855 its name changed to Royal Society of Tasmania for Horticulture, Botany, and the Advancement of Science. In 1911 the name was shortened to Royal Society of Tasmania.

Date Deposited: 16 Nov 2012 00:36
Last Modified: 18 Nov 2014 04:44
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