Crocea (Tridacna crocea) is a very distinctive marine shellfish in the bishell class, named after the orange-red markings on the surface of the shells. As a smaller member of the genus, it is still a key species in tropical coral reef ecosystems.

The Mediterranean mussel (scientific name: Mytilus galloprovincialis) is a species of shellfish in the genus Mytilus. It is an invasive species in many parts of the world, but is also a common species in aquaculture. The Invasive Species Expert Group (ISSG) of the International Union for Conservation of Nature's Species Survival Committee is listed as one of the world's top 100 invasive alien species.

The shell of the luxurious scallop is large and larger, with a shell length exceeding 100mm. The shell is tough and round in shape. The shell length is slightly equal to the shell height, the two shells are equal, the left shell is slightly more convex than the right shell, and the sides of the shell are slightly equal. The dorsal edge of the shell is straight, and the ventral edge is circular. The top of the shell is located in the middle of the back edge, small and not convex, with shell ears in front and behind the top of the shell. The two ears are unequal, with the left anterior ear slightly larger and both ears forming triangles, with 7-8 thin ribs on the ribs; There is a significant difference between the front and back ears of the right shell; The front ear is large, nearly triangular, with about 4 thick ribs on the surface, and there are several small comb teeth in the foot silk holes below; Rear ear triangle with several thin ribs.

The external characteristics of the shell range from medium to large. The shell beak is located at the front end. Thin shell. The true bead layer did not extend to the end. Lack of twisted teeth. The scar on the anterior adductor muscle is small and located at the front end, while the scar on the posterior adductor muscle is large and located in the center. There are no water pipes. Attach the front foot fibers to the substrate and bury them in the substrate with the back edge facing upwards.

Common names for turtle feet: Buddha's Hand Shell, Stone Snail, Dog Claw Snail, Turtle Feet, Chicken Crown Shell, Chicken Feet, Chicken Feet, Guanyin Palm. The body is divided into a head and a handle, generally 2-3 centimeters wide and 3-5 centimeters high. The head is light yellow and green in color. The handle is soft and brown or yellow brown in color, with small calcareous scales arranged tightly on the surface. The largest individual has a head width of up to 44 millimeters, a height of 27 millimeters, a handle width of 25 millimeters, and a length of 15 millimeters. The head is flattened on the side, and the shell chamber is formed by 8 shell plates including the rib plate, back plate, upper side plate, peak plate, and kiss plate. The base has a row (21-31) of small side plates that rotate.

Common names for turtle feet: Buddha's Hand Shell, Stone Snail, Dog Claw Snail, Turtle Feet, Chicken Crown Shell, Chicken Feet, Chicken Feet, Guanyin Palm. The body is divided into a head and a handle, generally 2-3 centimeters wide and 3-5 centimeters high. The head is light yellow and green in color. The handle is soft and brown or yellow brown in color, with small calcareous scales arranged tightly on the surface. The largest individual has a head width of up to 44 millimeters, a height of 27 millimeters, a handle width of 25 millimeters, and a length of 15 millimeters. The head is flattened on the side, and the shell chamber is formed by 8 shell plates including the rib plate, back plate, upper side plate, peak plate, and kiss plate. The base has a row (21-31) of small side plates that rotate.

Clams, also known as round clams, hard shell clams, or quails, are edible marine bivalve mollusks native to the east coasts of North and Central America, from Prince Edward Island to the Yucatan Peninsula. It is one of many unrelated edible bivalves, commonly referred to as clams in the United States. Hard clams are common throughout New England, northern Canada, and the East Coast of the United States to Florida; But they are particularly abundant between Cape Cod and New Jersey, where sowing and harvesting them is an important form of aquaculture business. For example, this species is an important member of the benthic community of suspended feeding animals in the lower Chesapeake Bay.

Mussels are marine organisms in the family Mytilidae of the phylum Mollusca. The shell is wedge-shaped, with a black brown surface, smooth and glossy; The growth pattern is fine and dense, and the inner surface of the shell is gray blue in color. The shell edge has a narrow edge where the outer skin is rolled in, and there are obvious scars on the adductor muscle and outer shell. The hinge has 2-5 granular small teeth; The ligament is slender and located at the dorsal edge of the shell, and is brown in color. Thin jacket, thick jacket edge. Mussels are widely distributed along the coast of China. Growing on coastal rocks, it mostly inhabits areas with rapid seawater currents and clear water quality, and has strong resistance to adverse environments such as red tide and sewage. Food is mainly composed of organic debris and diatoms.