Origin of Tridacna
Examples from the Web for tridacna
I did not know the name at the time, but I afterwards learned that it must have been a specimen of the Tridacna gigas.In the Eastern Seas|W.H.G. Kingston
The Chama (Tridacna) gigas, when at its full age and development, is the largest shell known.A Conchological Manual|George Brettingham Sowerby
Strictly speaking, the Singapore oyster is a gigantic species of Clam, (Tridacna).The Castaways|Captain Mayne Reid
A few are fashioned out of the thick portion of the shell of Tridacna gigas.
Those most prized are fashioned out of the thickest part of the shell of Tridacna gigas towards the hinge.