Abalone, ginseng, shark's fin and maw are four kinds of precious seafood, namely abalone, sea cucumber, shark's fin and fish maw. It is commonly used in Guangdong, Hong Kong and Macao to make sumptuous banquet or expensive delicious delicacies. Cucumber is sea cucumber, an echinoderm, which is black in color, with soft and flexible meat, and can be divided into: "spiny cucumber", "light cucumber" and "bald cucumber". Fish maw (fish maw) that is, swim bladder, is the sinking and floating organ of the fish, after dissecting and drying into the sun. Generally have shark fish belly, salamander fish belly, etc., is one of the four major sea food, in recent times is included in the "eight treasures" one.

Abalone

Abalone (Abalone), the name of the fish, in fact, non-fish, species of primitive marine shellfish, monocoque mollusks. Because of its shape is similar to the human ear, so also called it "sea ear" (Sea-ear). Abalone usually grows in the seabed of low water temperature, footprint throughout the Pacific Ocean, the Atlantic Ocean and the Indian Ocean, recognized as the best place of origin for the northern part of Japan and Mexico, China's northeastern part of the traditional production areas.

The world has named 216 species of abalone, distributed in China's coastal abalone there are seven species, including the northern Bohai Bay produced wrinkled disc abalone and the southeast coast of the miscellaneous abalone most common.

Shark's fin

Shark's fin is often referred to as "shark's fin" in folklore. As one of China's traditional precious food, it was first seen in "Song Huayao", is a kind of mountain treasures in the sea, shark fins, shark shark fins, shark fins, sand shark fins, Jinshi Cai, etc., specifically refers to the shark fins of the fine filamentous cartilage, by the sharks of the chest, abdomen, tail and so on the fins of the fins of the dry made.

According to China's relevant regulations, dishes made from protected animals, such as shark fins, are not allowed to be served in official receptions.