Question 1: How many types of shells are there? Countless species, tiger shell, white jade shell, luminous shell, five-clawed snail, pig mother snail, pearl oyster, chastity snail, Tang crown snail, seven-pointed shell, Pig ear shell, horseshoe snail, giant horn snail, precious snail, Phoenix snail, sea snail, cap snail, marine snail, Tang crown snail, jade snail, octopus, quail snail, frog snail, warhead snail, tore snail, corn snail, False torreya, French snail, clam, crown snail, ctenophylla, red snail, bivalve mollusk, radiata clam, red abalone, chicken heart clam, scale clam, chrysanthemum clam, sunflower clam, Pacific fox clam, angel wing seagull clam, Xiufeng clam, oil painted sea fan clam, solid sea chrysanthemum clam, red flower snail, yellow snail, Lamarck snail, West African cherry clam, snow mountain snail, eye-spotted snail, White star snail, map snail, hundred-eyed snail, black star snail, golden snail, fox clam, rat snail, long nose snail, big bamboo snail, red fox pen snail, red diamond snail, spotted quail snail , chestnut quail snail, donkey ear snail, hairy snail, winged snail, queen phoenix snail, bubble-shaped torreya snail, golden brown bullet snail, golden fist phoenix snail, lip moistening phoenix snail, crystal phoenix snail, small loquat snail, puffy belly Loquat snail, rooster phoenix snail, black-billed phoenix snail, golden axe phoenix snail, cloud-spotted rice snail, reticulated long-nosed snail, large red spiral snail, snipe skull snail, long fist snail, long-scented snail, spiny ball bone Snail, long spiral snail, giant thousand hand snail, large wrinkled snail, Duchenne long spiral snail, onion snail, spotted long spiral snail, lace snail, gorgeous snail, golden mouth frog snail, witch snail, koi pen snail, Martin's long-nosed snail, black-toothed French snail, twisted French snail, orange-mouthed torreya, brown-threaded snail, left-handed sweet snail, spiral ladder snail, Zan's ginkgo snail, rough-knurled phoenix snail, vase phoenix snail, flame tang snail, Taiwan date snail, Cone snail, thin crown snail, sea rabbit snail, purple sleeve phoenix snail, gemstone snail, large wheel snail, purple snail, intertwined bell snail, horseshoe snail, cat's eye salamander, luminous salamander, red frog snail, large white frog snail, large harp Snail, South African salamander snail, harp snail, West African carambola snail, purple-mouthed spider snail, water snail, red wengrong snail, water chestnut snail, dragon palace wengrong snail, wengrong snail, spider snail, etc.

Question 2: What types of shells are there? Shell information: Almost all molluscs have shells - shells. Shellfish can be divided into five major categories, namely Gastropoda, Bivalvia, Diegopoda, Polypladium, and Cephalopoda. Each class is further divided into several different groups. Gastropod shells: Most gastropod shells have small metaaqueductal grooves behind the shell mouth, and also have aqueous grooves in the front of the shell mouth. There may be pleats on the screw shaft and protruding teeth on the outer lip. Observing the shell mouth surface, the appearance is hat-shaped, ear-shaped, gyro-shaped, screw-shaped, pear-shaped, spindle-shaped, pipa-shaped and stick-shaped. Bivalve shells: These shells are composed of two shells, the left and right shells, connected by a ligament; the ligament can be seen from the bottom of the shell when the two shells are closed. The shapes are disk-shaped, fan-shaped, boat-shaped, paddle-shaped, and a few are heart-shaped and irregular. Shells of other classes: polyplacopods, digopoda, and cephalopods are far less abundant than gastropods and bivalves in terms of variety or morphological changes. All diggopods are ivory-shaped, and the rare cephalopod shells are almost the same shape and size; the shell plates of polyplates are decorated. Shell Growth: Immature shells are very similar to mature shells, just different in size. Bivalve shellfish grow along the edges of the two shells, and the direction of growth does not change as the shells grow older. Gastropods grow in a self-coiled manner along the shell mouth of the spiral tube. Components of shells: Calcium carbonate is the most basic substance that makes up shells. Another component is shell protein, which is contained in the mouth covers of gastropods. This ingredient is secreted layer by layer, making the shells harder and harder, and some even produce the luster of pearls. The hard shell enlarges from the outer edge and gradually thickens as it grows. The shellfish also secretes scales, tubercles, spines and ribs on the outer edge of the growth. Because of the periodicity and continuity of growth, shells display beautiful colorful patterns. Collection of shells: Clean the meat, residue and shell appendages of the shellfish, make sure the shells are completely dry, and then store them in a light-proof and airtight place. Finally, label and classify them to facilitate collection and retrieval. Shellfish habitat: Molluscs have been able to adapt to different living environments. From rocks washed by sea water day and night to the dark deep seabed, there are special groups of molluscs. Tides affect the characteristics and distribution of molluscs growing on the seashore, and sufficient sunlight can provide abundant food. Mollusks best inhabit the tropics and the variety of sea shells is breathtaking. Protect habitats: Humans should try not to destroy the habitats of living things. Under almost every rock and coral reef is a community of animals and plants. Once destroyed, it will bring disaster to them.

As long as one piece of coral is cut off from the reef, other coral reefs will die one after another. If a certain beach is constantly searched by seashell collectors, the natural habitat of this creature will gradually be destroyed. Therefore, please respect the living space of these defenseless lower animals. A variety of shells and conch shells, with strange shapes and colorful colors. Among them, tiger shell, white jade shell, luminous shell, five-clawed snail, pig mother snail, pearl oyster, chastity snail, Tang crown snail, seven-cornered shell, pig ear shell, as well as horseshoe snails that can be used as ashtrays, large horned snails that are used as horns for fishermen, etc. , are all endearing natural handicrafts, various screens, utensils, furnishings, etc. made of smooth and shiny sea shells carved and inlaid, with bright and natural colors, noble and elegant styles. Shells are made into a variety of practical crafts, such as wine sets, ornaments, pendants, necklaces and breast ornaments, etc., which are as exquisite and luxurious as jade. The shell carvings are also very distinctive. Hainan shell carving craftsmanship reached a high level in the Ming Dynasty, and was gradually combined with the ancient coconut carving craftsmanship to form a unique artistic style. Most of the refined Hainan shell carvings are combined and inlaid with coconut carvings, or coconut carvings are used as stands. The contrast between the bright shell carvings and the simple coconut carvings is eye-catching. Bivalve shells have two shells, generally oval in shape, with flat sides and body sizes that vary greatly. Most bivalve shells live submerged in the sand, but some can swim freely and are filter feeders, capable of filtering and feeding on tiny plankton in the water. These shells are common in Hong Kong waters and much of the Indo-Pacific region. The baby is colorful, graceful in shape, smooth and bright. The shell body varies in size from egg to oval, and the sides of the shell are spiral-shaped and overlapping inward. Currently, there are about 190 species distributed in tropical and subtropical waters, and 19 species are found in Hong Kong waters around Mirs Bay and Ko Chau. Babies are more active and foraging at night, mainly feeding on coral polyps, sponges and other tiny marine organisms. In ancient times, precious shells were a currency in circulation. The cone shell is colorful with spots, patterns or patterns. The patterns secreted by its mantle are rich in color and add character to the shell's graceful shape. The snail body is inverted bicone or ovate, extremely solid, and the snail...>>

Question 3: What types of shellfish are there? There are many types of shells: such as conch, conch, Frog snails, pearl oysters, Xiufeng clams, etc.

1. Shell, generally refers to the shell of molluscs. Have special gland cells whose secretions form calcifications called shells that protect the soft parts of the body.

2. Shells are divided into five major categories: Gastropoda (containing snails and snails), Acrepodia (parrot octopuses), Polyplacopodia, Pyropodia (ivory-like), and Bivalve Gang (two shells).

3. Pearl is an ancient organic gemstone. It is produced in the bodies of pearl shellfish and nacreous molluscs. It is a mineral (aragonite) beads containing calcium carbonate produced due to endocrine effects. Made of a large number of tiny aragonite crystals.

Question 4: What are the types of shells? What types of shells are good? Types of seafood 1. Fish (live): large yellow croaker, opium fish, small mouth fish, turbot fish, sea black fish, Mr. fish, Miss fish, moray eel, sea catfish, harlequin fish, boss fish, cobbler fish, rockfish, American red geoduck, live giant abalone Small abalone, live sea cucumbers, live sea sausages, and live turtles 2. Fish (chilled) Shark, opium, eel, salmon, stick fish, boss fish, croaker, monkfish, jack fish, sea bream, octagonal fish, sardine, red-headed fish, big-headed fish, Chang fish, pointed fish, swordfish, Mr. Fish Noodles Fish, black fish, barracuda, dace, crucian carp, red saury, river saury, mixed fish, osmanthus fish, big-headed nine-rabbit fish, fat-headed fish plate, fish head, tuna, octopus, island fish, tongle fish, octopus, mullet 3. Shellfish (fresh), Hawaiian clams, red leopard, red scallop, tamarisk, king conch, small seafood, Korean scallops, abalone, bird shells, navel snails, swan eggs, mango clams, white cloud clams, butterfly clams, white clams, lady clams, tiger-skin clams, red clams, longan clams Glass clams, fresh seeds, clams, sea oyster shells, red scallops, arctic clams, elephants, batung sea red hair, sea red small tamarisk pen holder, small tamarisk seafood, fresh water chestnuts, black ox-eye clam scallops, red scallops, small sea snails, fragrant snails, shampoo snails, spicy wave snail tips Wave snail, sea hare, flower snail, steel snail, mussel, white clam, sea snail, snail, fresh seaweed, asparagus, deer shank, seaweed, kelp slices, sea fungus, kelp buckle 4. Shrimp, lobster, lobster larvae, base shrimp, skin shrimp, green shrimp, big sea shrimp, Lugo shrimp, bamboo shrimp, peach blossom shrimp, small river shrimp, small red shrimp 5. Meat (chilled), clam meat, oyster meat, fresh scallop meat, fresh scallop meat, eel meat, sea sausage, clam meat, fish tentacles, fresh fish belly, herring roe, saury roe, shark brain, sting head, sting skin, fresh jellyfish Mr. Shark Belly Fish and Tamarind Mouth Kung Fu Dishes 6. Chilled (water-cooked) water-coated ginseng, shrimp, fur seal, whipfish, tendons, fish intestines, white fish belly, sand fish skin, ling fish skin, sand fish throat, silkworm chrysalis, male silkworm, goose, crab roe and red caviar stewed

Question 5: How much do you know about the types of shells? Natural shells include seawater shells, freshwater shells, yellow plate shells, cow ear shells, freshwater cotton clams, cow's foot clams, hemp clams, etc. Shells can be used as jewelry and daily necessities.

Types of shells: tiger shell, white jade shell, luminous shell, five-clawed snail, pig mother snail, pearl shell, chastity snail, Tang crown snail, seven-pointed shell, pig ear shell, horseshoe snail, giant horned snail, treasure shell Conch, phoenix snail, sea snail, cap snail, marine snail, crown snail, jade snail, octopus, quail snail, frog snail, warhead snail, tore snail, millet snail, false tore snail, French snail, cargo shell, crown snail , Ctenophora snail, red snail, bivalve molluscs, radiata clam, red abalone, chicken heart clam, scale clam, chrysanthemum clam, sunshine cherry clam, Pacific fox clam, angel wing gull clam, Xiufeng Clams, oil-painted sea fan clams, solid sea chrysanthemum clams, red flower snails, yellow snails, Lamarck snails, etc. Which type of shell is better depends on who judges a shell. There is never a standard for how different a shell is from neighboring species before it can be judged as an independent new species. Therefore, there is no fixed number of how many kinds of molluscs there are. Of course, although the strict biological classification is not conclusive, there are still estimated data on the different species of molluscs. General university textbooks believe that there are between 50,000 and 200,000 species of molluscs. Different classification standards are used. There will be different specific numbers.

Question 6: How many types of shells are there in the world? ●There are 120,000 species of shellfish in the world. They are the second largest group of natural organisms after insects. ●More than 2,000 species of shells live in The South China Sea has added rich colors to Hainan’s sea culture ● It is not enough to learn about shellfish only from the dining table. When you first come to Hainan, you will most often eat a fragrant and fresh winter melon and conch soup. After staying on the island for a long time, I realized that this soup is called the best soup in Hainan. When I was suffering from internal heat due to excessive food and tiredness, I cooked a pot of soup like this. After eating it, I immediately felt much more comfortable. Many people begin to know this kind of marine life - shellfish from the dining table. However, understanding shellfish only from the dining table is too superficial. Shellfish are a very precious resource given to mankind by nature. There are about 120,000 kinds of shellfish in the world. Shellfish are found everywhere in rivers, streams, lakes, and oceans. They are the second largest group of natural organisms after insects.

The unique shapes, pleasing colors, and exquisite patterns show the uncanny gift of nature, which is breathtaking. Throughout the long history, shellfish have reflected the evolution and process of human society with their unique charm. Types of shellfish Shellfish in the world can be roughly divided into two types: terrestrial and aquatic, of which aquatic marine shellfish account for more than 80% of the total. Marine shellfish are essentially mollusks, which are characterized by soft, unsegmented bodies consisting of five parts: head, feet, visceral sac, mantle and shell. According to the physical characteristics and structure of its shell, clams can be divided into 5 categories. Gastropods: including snails, conches, corn snails, etc., with a twisted spiral shape; bivalves: including clams, oysters, scallops, etc., which generally consist of two scallop shells, in the shape of a valve; Cephalopods: including cuttlefish , nautilus, octopus, etc.; polyplates: these shells have up to 8 shell plates, forming a peculiar shape; digipoda: the top of the shell is forward, the membrane surface is curved, and it is shallow hat-shaped. There are 5 types of shellfish, of which gastropods and bivalves are the largest, accounting for more than 80-90% of the total existing shellfish. Shell structure A typical shell has a three-layer structure. The outer layer is a qualitative layer called chitin, which is a hard protein; the middle layer is thicker and is called a prismatic layer or shell layer; the inner layer is a leaf-like aragonite structure, which is extremely rich. Brilliance, called nacre. The outer and middle layers are secreted from the dorsal edge of the mantle, and the inner layer is secreted from the entire surface of the mantle. Some shells do not have these three layers of structure, such as seashells and cuttlefish. The main component of shells is calcium carbonate, accounting for 95% of the total components. Other components include inorganic substances such as magnesium, iron, calcium phosphate, calcium sulfate and silicate, as well as a small amount of organic substances such as shellin. In Chinese, there are many names for shellfish. The most commonly used names are shells, conches, oysters, clams, etc. Others are called chitons, abalone, clams, octopus, cuttlefish, manatees, clams, and snails. , slugs, insects, clams, razor clams, squid, snails, etc., it can be described as diverse. In terms of shape, there are more than 100,000 kinds of shellfish. Some are shaped like bamboo hats or hats, some are gyro-shaped, cone-shaped, or pagoda-shaped, while others are like a disk or sphere. Shellfish of different shapes also vary greatly in size. The rainbow snail is as small as a body only 0.03 mm long, and the largest clam shell is 1.8 meters long and weighs about 500 kilograms. The colors of shellfish include almost all natural colors, and their patterns are even more amazing. Hainan Island has a diverse and vast marine environment. The water quality is excellent, the salinity is stable, and the water temperature is moderate. It provides good living conditions for all kinds of molluscs to inhabit and reproduce, forming a rich variety of shellfish unique to Hainan. class resources. According to incomplete statistics, there are nearly 2,000 species of marine shellfish in Hainan waters, and some species are even unique. Among them, abalone, horseshoe snails, mussels, mud clams, hairy clams, river clams, scallops, sun and moon clams, clams, etc. are available for consumption. The ones that can be used for medicinal purposes include abalone shells, salamander snail shells (called mica stone in Chinese medicine), cone snail shells and meat, baby shells, red snail shells and their snails and meat, lychee snail shells, mud clam shells, mussel shells, and oysters. Shells, clam shells and meat, etc. Pearl oysters that grow in Hainan waters are one of the precious shellfish. The main pearl oysters that produce seawater pearls include Pinctada martensi, Pinctada maxima (commonly known as black butterfly oyster), Pinctada maxima (commonly known as white butterfly oyster), etc. Among them, Pinctada maxima is the largest species. Its shell is more than 30 centimeters long. It has a solid and thick shell. There are grayish-brown radial ribs on the surface of the shell and a rich silver-white nacreous layer inside the shell. It often inhabits sea areas with a water depth of about 20 meters. , is a species unique to Hainan Island. The pearls and shells of pearl oysters, luminous conch shells, nautilus, tiger-spotted baby, French conch, crown conch, hedge conch,... >>

< p> Question 7: How many types of shells are there in the world? There are approximately 110,000 species of shells in the world, of which about 30,000 species live on land, 50,000 species live in freshwater such as ditches, mountains, rivers, and lakes, and the rest live in the ocean. Arranged according to the five major categories of molluscs, shells can be divided into gastropods, bivalves, excavators, polyplastids and cephalopods

Question 8: What are the types of shells in China? There are about 120,000 species. There are traces of shellfish everywhere in rivers, streams, lakes, and oceans. They are the second largest group of natural creatures after insects. The unique shapes, pleasing colors, and exquisite patterns show the uncanny gift of nature, which is breathtaking.

Hainan’s Shellfish Hainan Island has a diverse and vast marine environment. The water quality is excellent, the salinity is stable, and the water temperature is moderate. It provides good living conditions for various types of molluscs to inhabit and reproduce, forming a Hainan’s unique and rich shellfish resources. According to incomplete statistics, there are nearly 2,000 species of marine shellfish in Hainan waters, and some species are even unique. Among them, abalone, horseshoe snails, mussels, mud clams, hairy clams, river clams, scallops, sun and moon clams, clams, etc. are available for consumption. For medicinal purposes, abalone shells, salamander snail shells (called mica in Chinese medicine), cone snail shells and meat, baby shells, red snail shells and their snails and meat, lychee snail shells, mud clam shells, mussel shells, and oysters Shells, clam shells and meat, etc. Pearl oysters that grow in Hainan waters are one of the precious shellfish. The main pearl oysters that produce seawater pearls include Pinctada martensi, Pinctada maxima (commonly known as black butterfly oyster), Pinctada maxima (commonly known as white butterfly oyster), etc. Among them, Pinctada maxima is the largest species. Its shell is more than 30 centimeters long. It has a solid and thick shell. There are grayish-brown radial ribs on the surface of the shell and a rich silver-white nacreous layer inside the shell. It often lives in sea areas with a water depth of about 20 meters. , is a species unique to Hainan Island. There are many kinds of pearls and shells of pearl oysters, luminous conch shells, nautilus, tabby baby, French conch, crown conch, hedge conch, spotted conch, cone conch, etc. that can be used for making decorations and ornamental handicrafts and shell carvings

Question 9: How many types of shell ornaments are there? I think you are talking about molluscs with exoskeletons (shells). Regarding the classification of biology, if you stay at the level of popular science, you will think that it is a very A rigorous and orderly system. Each creature can find its own unique position... The actual situation is that if you enter the level of biological taxonomy, you will find that it is very difficult to sort out. It’s a chaotic world where there are clues. Not to mention how many species there are, there is no conclusion on how many kingdoms there are. In the beginning, Linnaeus divided organisms into the animal kingdom and the plant kingdom based on whether they can move autonomously. Today’s popular science books still talk about it this way. Yes, but almost no current college biology textbooks are classified in this way. In today's universities, different universities use different textbooks, and also adopt different classification systems. There are three-term, four-term, and five-term systems. There are also six realms. Even the realms have not been determined, and the phyla, families, genera and species below are even less certain. How many species of molluscs are there? It depends on who counts, or who judges. One species There has never been a standard for how different a shell should be from neighboring species in order to be considered an independent new species. Therefore, there is no definite number on how many species of molluscs there are. Of course, although strict biological classification is inconclusive, there are generally There are estimated data on the different species of molluscs. General university textbooks believe that there are between 50,000 and 200,000 species of molluscs. Different classification standards will lead to different specific numbers

Question 10 : How many types of shells are there? The number, shape, and structure of shells vary greatly. Some species have one spiral shell (such as snails, snails, and abalone); some species have two valve-shaped shells (such as clams, cockles); It has 8 plate-shaped shells arranged in an imbricate shape (such as chitons); some species have one shell embedded in the body (such as cuttlefish, calamari); some species of shells have even completely degenerated (such as shipworms) . The main component of shells is 95% calcium carbonate and a small amount of chitin. Generally, it can be divided into 3 layers. The outermost layer is the dark brown cuticle (shell), which is thin and transparent. It has the function of preventing carbonic acid erosion. It is composed of chitin secreted from the edge of the mantle; the middle layer is the prismatic layer (shell). ), thicker, composed of prismatic calcite secreted from the edge of the mantle. The outer and middle layers can expand the area of ??the shell but do not increase the thickness; the inner layer is nacre (bottom layer), which is composed of leaf-shaped calcite secreted from the entire surface of the mantle. Made of stacked aragonite (aragonite), it has a beautiful luster and can thicken as the body grows. The main chemical components of calcite and aragonite are CaCO3.