Abstract

From the earliest times the Tridacna shells, on account, of their huge size, have attracted the notice of naturalists, so that, the pioneers of conchology more than a hundred years ago already had collected a large body of information about them. But modem zoologists have not found much more to add, perhaps because the subject was considered to be exhausted. Yet the history of the habits, affinities and nomenclature of this curious genus is still far from complete.

A Tridacna occurring abundantly in the Gulf of Suez was examined by Dr. Leon Vaillant. He determined it, probably erroneously, as Tridacna, elongata, Lamarck, and described it as buried in sand so that the serrate margin of the valves alone projected and as moored by a profuse byssus hawser to the stone beneath; he adds that the bivalve may change its position and even move to a distance. Vaillant concluded that all other members of the genus Tridacna have similar habits and disparages those writers and travellers whose observations differ from his own. Thus he doubted the accuracy of the account of the large, fleshy foot given independently by Quoy and Gaimard and by Woodward. In reference to the statement that T. crocea lives buried in coral, Vaillant supposes that it, could not actually excavate the stone and must therefore have been enveloped by an over growth of the living coral polyps. These views, advanced with so much authority, seemed to have gained general acceptance.

In Australia, Tridacnidae do not behave as Vaillant describes...

 
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Bibliographic Data

Short Form
Hedley, 1921, Rec. Aust. Mus. 13(4): 163–172
Author
Charles Hedley
Year
1921
Title
A revision of the Australian Tridacna
Serial Title
Records of the Australian Museum
Volume
13
Issue
4
Start Page
163
End Page
172
DOI
10.3853/j.0067-1975.13.1921.867
Language
English
Plates
plates xxvii–xxxiv
Date Published
12 April 1921
Cover Date
12 April 1921
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
MOLLUSCA: BIVALVIA; TAXONOMY; GREAT BARRIER REEF
Digitized
08 January 2009
Available Online
06 March 2009
Reference Number
867
EndNote
/Uploads/Journals/17093/867.enw
Title Page
/Uploads/Journals/17093/867.pdf
File size: 106kB
Complete Work
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