Abstract

The collection of Alcyonarians made by the "Thetis" includes thirty-five species, of which thirteen are new,—a large proportion. When the specimens are arranged in systematic order, it is seen at a glance that the collection has a very definite character, namely, the proportionately large number of Isidae (e.g., six species of Mopsea, four new) and of Primnoidae (e.g.,five new spedes of Plumarella). These Isid and Primnoid colonies are extraordinarily beautiful, and their superficial resemblance to large fronds of Sertularians is striking. It is a matter for gratification  that numerous specimens of some of the new species have been preserved, so that it was possible to make sure that one was not dealing with individual variations. Another feature of the collection is the frequent occurrence of encrusting colonies of Alcyonium (Erythropodium) membranaceum and A. reptans described by Kükenthal, which grow over Gorgonid axes in a very misleading fashion. It is not too much to say that an unprejudiced observer, who had not seen the real state of affairs exposed in unmistakeable cases, would describe these Gorgonid axes encrusted with Erythropoditlm as peculiar Axifera.

 
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Bibliographic Data

Short Form
Thomson and Mackinnon, 1911, Aust. Mus. Mem. 4(13): 661–695
Author
J. Arthur Thomson; Doris L. Mackinnon
Year
1911
Title
Scientific results of the trawling expedition of H.M.C.S. "Thetis" off the coast of New South Wales, in February and March, 1898, the Alcyonarians of the "Thetis" Expedition
Serial Title
Australian Museum Memoir
Volume
4
Issue
13
Start Page
661
End Page
695
DOI
10.3853/j.0067-1967.4.1911.1509
Language
English
Plates
plates lxi–lxxxii
Date Published
27 January 1911
Cover Date
27 January 1911
ISSN
0067-1967
CODEN
AUNMA5
Publisher
The Australian Museum
Place Published
Sydney, Australia
Digitized
30 March 2009
Available Online
03 August 2009
Reference Number
1509
EndNote
/Uploads/Journals/16942/1509.enw
Title Page
/Uploads/Journals/16942/1509.pdf
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Complete Work
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