Huge and beautiful pearls are girls' favorite. But also can be used as clothes ornaments and jewelry. But do you know where such beautiful pearls come from? Pearls come from shells deep in the ocean. So, do you know the largest shellfish in the world? Let's learn about it with me! The world's largest shellfish

The name Trionyx sinensis comes from the Han Dynasty. On the surface, the shape of the shell is very similar to that of the ancient car-pulling groove, and its shell hardness is very hard, so people later took the name of the shell. The length of the shell can reach more than one meter and the weight can reach more than 311 kilograms. Because their shells are very beautiful, they also have good decorative value. The pearls and precious stones made from the processed clams are also known as the four organic precious stones in western countries.

Morphological characteristics

Trionyx sinensis is a very beautiful bivalve, the size of which is the same as that of a triangle. The surface of the shell is very rough, the edge of the double shell is as uneven as sawtooth, and the inside of the shell is white and smooth.

Living habits

They are mainly distributed in the Pacific Ocean and the Indian Ocean, and they like to live in hot coral areas. In our country, Hainan and Taiwan Province occasionally see the figure of the tortoise shell. Moreover, you often drink a lot of yellow algae to live together. Yellow algae can circulate in the body of the cockroach to carry out photosynthesis, which is because it can provide cockroaches with rich nutrition. There is also a glass structure on the edge of the outer membrane of the cockroach. This glass structure can gather light and allow a large number of yellow algae to multiply. This very special relationship is called reciprocity.

economic value

the economic value of the cockroach is still very high, and the meat can be eaten as a delicacy. You can also produce pearls in the body, and the shell is beautiful and can be made into ornaments. Their shells can also be made into drinking cups and shell powder.