CATDOLL : CATDOLL: How many tons of giant snails are there in the world?

1. How many tons of giant snails are there in the world?

The world's largest snail

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Tang crown snail.

The Tang crown snail is an animal of the Tang crown snail family. It is a large sea snail. The shell is large and thick, up to 30 cm long and high. It is grayish white to golden yellow with a metallic luster. It looks like a crown cap from the Tang Dynasty, hence the name. The spiral part is low. There are 5-7 horn-like protrusions on the shoulder.

The world's largest snail

Apple Snail

The largest field snail in the world: Golden Apple Snail, is the largest freshwater field snail mollusk. It looks very similar to field snails. It is large, has a wide range of diets, strong adaptability, fast growth and reproduction, and high yield.

The world's largest snail

Now let's get to know the largest conch in the world, which is the Tang crown conch, one of the four famous conchs. The shell length and height of this conch can reach 30 cm, with a peculiar shape, which can be both appreciated and collected.

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The largest field snail in the world: Golden Apple Snail, is the largest freshwater field snail mollusk. It looks very similar to field snails. It is large, has a wide range of diets, is highly adaptable, grows and reproduces quickly, and has a large yield.

The world's largest snail

Now let's get to know the largest conch in the world, which is the Tang crown conch, one of the four famous conchs. The shell length and height of this conch can reach 30 cm, with a peculiar shape, which can be both appreciated and collected.

2. The difference between river snails and golden apple snails

Differences between river snails and golden apple snails

The golden apple snail is larger and has a yellow shell, while the field snail has a bluish-brown shell.

The tail of the golden apple snail is flat and short, while the tail of the field snail is long and pointed.

The shell of the golden apple snail is relatively flat, while the shell of the field snail is relatively round.

The golden apple snail has fewer whorls than the field snail. The golden apple snail usually has 3 to 5 whorls, while the field snail has 6 to 7.

The shell of the golden apple snail is very brittle and can be easily crushed by hand.

The most obvious difference seen with the naked eye is the whorls, as the golden apple snail has fewer coils.



From the appearance point of view:

There are big differences between golden apple snails and field snails. First of all, in terms of size, adult golden apple snails are much larger than field snails. "In terms of color, golden apple snails are yellowish, while field snails are bluish-brown."

From the structural point of view:

Even if the size of the river snail and the golden apple snail is similar, there are great differences in their structure. The river snail has a cone-shaped tail and a round head, while the golden apple snail has a very short tail and a flat head, and the whole is disc-shaped.

Although we often eat fish or other animals that live in the sea or freshwater lakes in our lives, we are often confused by the appearance of these animals because they look too similar. Take the golden apple snail and field snail for example, many people don’t know how to distinguish them. Here I will introduce to you how to distinguish them.

1. Speaking of the animal Golden Apple Snail, you can now search it online and look at the photos of the Golden Apple Snail. At that time, everyone will be surprised and exclaim that it is exactly the same as the field snail. However, don’t be confused by the appearance of these two animals. There are still many differences between them. For example, if you look closely at the color of their shells, you will find that there is still a certain difference between the two. Generally, if you observe carefully, you will find that the color of the field snail's shell is slightly darker. The field snail's shell is mainly blue-brown, while the Golden Apple Snail's shell is slightly lighter. Generally, the Golden Apple Snail's shell is yellowish-brown, so if you observe the shells of the two carefully, you will still be able to distinguish the two animals.

2. We can distinguish field snails and golden apple snails simply by looking at their shells. If you look closely, you can find that the shell of the field snail is round, while the shell of the golden apple snail is relatively flat.

3. From a biological point of view, the biggest difference between field snails and golden apple snails is actually their reproduction method. Of course, this method cannot be used to distinguish them by appearance. Field snails reproduce by giving birth to young, while golden apple snails reproduce by laying eggs.

Through the series of methods of distinguishing between field snails and golden apple snails introduced above, I believe everyone can master certain distinction skills in life. In addition, if you really can't distinguish them, you can also look at the caudal vertebrae of field snails and golden apple snails. The caudal vertebrae of field snails are long and pointed, while that of golden apple snails is short and flat.

Therefore, everyone must distinguish the difference between river snails and golden apple snails.

The difference between golden apple snail and field snail

3. What is the difference between Wanluo and Panluo?

1. Different specifications. The diameter specifications of coils are generally 6.5mm, 8.0mm, 10mm, 12mm, and 14mm, while the diameter specifications of wires are generally 5~9mm.

2. Different shapes. Coil screws are generally spiral-shaped, while wire rods are generally round.

3. Different application scopes. Wire rods are generally used only as building materials, while wire rods can be used as both building materials and wire drawing materials. For example, they can be made into steel wire ropes, or woven into steel wire meshes, hot forged or cold forged into rivets, cold forged and rolled into bolts, and machine parts or tools through various cutting processes and heat treatments, and springs through winding and heat treatment.

Additional information

Steel coil for construction

Construction steel, as the name implies, is rebar that is coiled together like wire. Most of the steel on the market is 6.5-8.0-10-12-14. When delivered, the rebar is usually weighed, mainly because the rebar is coiled and cannot be measured. At the same time, in the steel market in 2012, there are only three grades of rebar, and the second grade rebar has been eliminated.

Wire Application

The uses of wire can be summarized into two main types: one is used as building materials; the other is used as raw materials for wire drawing.

Wires used as building materials include ordinary low-carbon steel, high-quality carbon steel, and carbon spring steel. There are round and threaded varieties, with diameters of 6 to 25 mm being the most commonly used, and diameters of 28 to 32 mm are also commonly used.

Wires used as building materials are required to have guaranteed chemical composition and weldability, and uniform and stable physical properties to facilitate cold bending, cold drawing and cold drawing. Wires of various specifications and diameters used in construction projects are expected to be delivered in coils so that they can be cut at will according to the length required to avoid waste.

Although there are many types of steel, the only type of wire used as the raw material for wire drawing is round. In order to reduce the number of drawing times, the diameter is generally 5 to 9 mm, and wires with a diameter greater than 10 mm are also used for special purposes. The wire used as the raw material for wire drawing is required to ensure uniform and stable chemical composition and physical properties, the metallographic structure should be as sorbitized as possible, the size should be precise, the surface should be smooth, and the iron oxide scale should be thin and easy to remove.

In general, wires have a wide range of uses and play an important role in all sectors of the national economy. Some wires can be used directly after rolling, mainly for reinforced concrete reinforcement and welded structural parts; others are used as reprocessing raw materials and are used after reprocessing.

For example, after drawing, it becomes various steel wires, and then twisted into steel wire ropes, or woven into wire mesh; after hot forging or cold forging, it becomes rivets; after cold forging and rolling, it becomes bolts; after various cutting processes and heat treatments, it becomes machine parts or tools; after winding and heat treatment, it becomes springs; and so on.

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With the development of aquaculture, various fish, shrimp, crab and shellfish that were once expensive have entered the tables of ordinary people. Among them, various types of snails, including abalone, are indispensable. The chaos of "snails" is gradually dazzling. If you can't accurately call out the name of this plate of snails, how can you pretend to be worldly?

Well, today we will “take precautions before they happen” and get to know the ten most common edible snails in my country, so that you can familiarize yourself with them at the dinner table and gain the praise of everyone at the table!

01

Haliotis discus hannai

Abalone discus punctatus｜Jan Delsing / Wikimedia

Yes, the first one to appear is the abalone, which is called fish but not fish. Abalone, like other conchs, belongs to the class Gastropoda of the phylum Mollusca. Although its flat appearance often makes people forget that it is a conch, a closer look at the spiral at the top of its shell will reveal that it is actually a conch with a particularly large last whorl!

Abalone, which is listed as the first of the "Eight Delicacies of the Sea", was a delicacy that only the rich and powerful could enjoy in ancient times, but now it has become a common dish on the tables of ordinary people. This is mainly due to the rapid development of the breeding industry, which has made abalone cheaper and cheaper.

The price of fresh abalone is quite affordable at present. You can stir-fry with garlic, steam, make soup, grill over charcoal fire｜Manji / flickr

02

Turritella bacillum

Cone snail｜Zachi Evenor / flickr

The cone snail has a very high spiral tower and looks like a spiral nail, so some areas in Guangdong call it "oncomelania snail". Coincidentally, this common name is the same as the only intermediate host of schistosomiasis - "oncomelania snail". In fact, it is the oncomelania snail living in freshwater that can spread schistosomiasis. The cone snail living in seawater has nothing to do with it and can be eaten without worry.

The most common way to cook cone snails is to stir-fry them with spicy sauce. Usually, the tail of the snail is cut off with pliers first, which makes it easier to absorb the flavor and pick out the meat.

Stir-fried Cone Snails｜Left-handed Chef/Douguo Food

03

Babylonia areolata

Babylonia square-spotted｜H. Zell / Wikimedia

Also known as "flower snail", "phoenix snail" and "sea pig snail". Dongfeng snail has a light fishy smell, delicious meat and crisp taste. It is very common and popular in the southern my country market. Common cooking methods include blanching, stir-frying with spicy sauce and stir-frying with sauce.

Spicy Flower Snails｜Hui Hui Cooking Art/ Douguo Food

Among the many sea snails, the Dongfeng conch is a very "lively" type. Although it usually lurks in the sand, as soon as it smells the smell of food, it can quickly crawl out to find food. Its crawling speed makes people wonder if it is playing at double speed.

The snail runs quickly towards food｜berlika

04

Thais sp.

A type of periwinkle｜me / Wikimedia

Also known as spicy snail and bitter snail, it is known as the "spicy girl among snails". Lychee snails live on the shady side of reefs or on the seabed reefs in the middle and lower areas of the intertidal zone. They are distributed along the coast of China and are one of the easiest snails to pick up when going to the sea.

It has a spicy taste, but many people like it. Snail soup and snail stew are very popular among residents and tourists in southern Fujian.

However, when abalone is being farmed, its role can only be reduced to a foil - abalone farmers often put a few lychee snails in the abalone cages, allowing this carnivorous snail to remove oysters, barnacles, glass ascidian and other organisms in the cages, thereby improving the growth efficiency of the abalone.

Lychee Snail: How did a good snail become a security guard?

05

Rapana venosa

Red rock snail | George Chernilevsky / Wikimedia

It is also known as the veined red snail and conch. The "oyster snail" in the sea-hunting videos generally refers to it. It is distributed in both the north and south of my country, and the production in the north is huge, with a stable supply in the market. The red wrinkled rock snail has a large foot and a sweet taste, which is very popular among consumers.

Like the lychee snail, the red wrinkled rock snail is also carnivorous, and its main food is bivalve shellfish. When it encounters a shellfish smaller than itself, it will first firmly suck it with its ventral foot, then secrete acidic substances to anesthetize it, and then slowly eat it. Therefore, in some areas, bait is used to "catch snails".

06

Neverita didyma

Giant snail｜H. Zell / Wikimedia

Also known as flat jade snail, fragrant snail, and belly button snail. It is an important economic snail species along the coast of my country. It is large, high in protein, low in fat, chewy, and has a refreshing aftertaste. Large jade snails are suitable for blanching or stir-frying, but the cooking must be done quickly, otherwise it will be overcooked and difficult to pick out or chew.

Stir-fried conch｜Zhaowowo/Douguo Food

The biggest feature of the giant snail is the fleshy feet that appear when it is in a stretched state. When stimulated, it can quickly "squeeze water" and become smaller. It is very cute and makes people very hungry.

The fleshy feet of the giant snail｜self / Wikimedia

07

Bullacta exarata

Mud snails｜Try the good taste/Bean fruit food

Although mud snails are small in size, they have thin shells and thick meat, and are very satisfying to eat one at a time. The most common way to cook mud snails is to clean them, soak them in salt water for several times, marinate them in a marinade made of fennel, cinnamon, ginger slices, etc., and finally add a small amount of rice wine. The sweet and crispy drunken mud snails are ready.

Drunken mud snails are a famous snack in the Jiangsu and Zhejiang regions, and they go well with rice. However, since they are not cooked at high temperatures, they may contain bacteria or parasites, so it is recommended to cook them before eating.

Cooked and Drunken Mud Snails｜Yumancang Seafood/ Douguo Food

08

Neptunea arthritica cumingii

Xiangsnail｜Guido Poppe / gastropods

Also known as the ringing conch, windmill conch, and golden conch. This conch was previously called the Kamin's whelk, and its Chinese name was changed to "fragrant conch" after the "fragrant conch genus" was separated.

The individual snail is generally more than 10 cm long. The snail meat can be eaten fresh or dried. It is a snail with high economic value. Of course, the price is not cheap. The market price in Liaoning Province is nearly 50 yuan per catty.

09

Coconut spiral shell Melo melo

Coconut spiral shell. Image: Mosmas / Wikimedia

Also known as yellow snail, meat snail, melon snail. Coconut snails live in shallow waters and are easy to collect, and have a large amount of meat, so they have long been the focus of fishermen's collection of food. Coconut snails can grow to the size of a Hami melon and weigh more than 20 kilograms. They are probably the largest snails you can see in the seafood market.

However, according to the "first law of eating snails": the bigger the snail, the better the meat. The same is true for coconut snails: if they are not cooked, they will smell fishy, ​​and if they are overcooked, they will be too hard, which is a great test of the cooking skills of the cook.

The best way is to cut the snail meat into thin slices one or two millimeters thick, and then stir-fry it with pickled bamboo shoots, chili peppers, etc., so that the snail meat can absorb the flavor of the seasoning without being too hard to chew.

10

Chinese round pond snail Cipangopaludina chinensis

Chinese round pond snails｜Wikimedia

For people living in non-coastal cities, the above-mentioned marine snails are rare. What is more common is the "field snail" that lives in freshwater. The "field snail" we usually refer to is generally the Chinese round field snail or the Chinese round field snail (Cipangopaludina cathayensis). These two types of field snails are widely distributed in my country and can be found in lakes in almost all places.

Fried snails. Image: Yunduo Breadzx / Douguo Food

The most important thing to pay attention to when eating snails is: don’t make the mistake!

The river snail looks very similar to the famous invasive alien species, the golden apple snail, which is the intermediate host of parasites such as Angiostrongylus cantonensis and Echinostoma revoluta. A golden apple snail can contain 6,000 parasites. Eating insufficiently heated golden apple snails may cause parasitic infection, which can lead to coma and death in severe cases.

Ahem, this is not a golden apple snail, it’s a “broken life snail”.

So how do you tell the difference between field snails and golden apple snails? First of all, the golden apple snail is bigger than the field snail, and its mouth is also bigger than the field snail; secondly, the shell of the golden apple snail is yellow, while the field snail is bluish-brown; finally, the "butt" of the golden apple snail is flat, while the "butt" of the field snail is pointed.

Swipe left and right to see the difference between the golden apple snail and two common field snails, the Chinese round field snail and the Chinese round field snail｜Claude & Amandine EVANNO

The above ten types of snails have different appearances and tastes. However, no matter which type of snail, it may be the intermediate host of parasites. It can only be eaten safely after being fully cooked. While you are feasting on New Year's Eve, you must pay attention to food safety. Remember the following twelve-word motto to make every meal of snails enjoyable:

Thoroughly cooked! Thoroughly cooked! Thoroughly cooked!

Different specifications. The general diameter of the spiral screw rod is ~ Different shapes. Coil screws are generally threaded, while wires are generally round. Different application ranges. Coil screws are generally only used as building materials.