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Tridacna clams can produce large white pearls with an undulating, porcelain-like surface, [16] which may be described as "non-nacreous pearls". [ citation needed ] The " Pearl of Lao Tzu ", also known as the "Pearl of Allah", is the world's largest pearl weighing 6.4 kilogrammes; it was said to have been found inside a Tridacna gigas by a ...
Tridacna squamosa, known commonly as the fluted giant clam and scaly clam, is a species of bivalve in the family Cardiidae. [ 1 ] [ 3 ] It is one of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian Oceans .
Tridacna squamosina is a species of the Tridacna genus, the giant clams. These animals are bivalve mollusks belonging to the family Cardiidae identified by Sturany 1899. [1]In 2008 Roa-Quiaoit, Kochzius, Jantzen, Zibdah & Richter identified what they believed was a new species of giant clam they called Tridacna costata, [2] however in 2011 Markus Huber and Anita Eschner examined a collection ...
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Mantle of giant clam with light-sensitive spots, which detect danger and cause the clam to close. Tridacna gigas, the giant clam, is the best-known species of the giant clam genus Tridacna. Giant clams are the largest living bivalve mollusks. Several other species of "giant clam" in the genus Tridacna are often misidentified as Tridacna gigas.
The Natural Clam Pearls necklace up for sale on Etsy by ArtofpearlsCH for $56,530.01. A handmade item, this art nouveau styled piece measures 46 centimeters long and is made not only of pearls ...
The Pearl of Lao Tzu was once considered the world's largest known pearl. The pearl was found by a Filipino diver in the Palawan sea, which surrounds the island of Palawan in the Philippines. It is not considered a gemstone pearl, but is instead known as a "clam pearl" or "Tridacna pearl" from a giant clam. It measures 24 centimeters in ...
Sometimes the giant clams are still treated as a separate family Tridacnidae, [1] but modern phylogenetic analyses included them in the family Cardiidae as a subfamily. [2] [3] Two recent genera and eight species are known: Hippopus—2 species; Tridacna—10 species; Recent genetic evidence has shown them to be monophyletic sister taxa. [4]
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