Fish without scales, their features, types and names

In the world of the deep sea, many amazing living organisms, some of which are fish without scales. In Judaism, they are equated with unclean reptiles, so the Jews do not eat them.

Scales perform a number of important functions, including:

  • Disguise;
  • Protection against parasites;
  • Streamlining improvement;
  • Speed ​​increase, etc.

Fish without scales is forced to adapt to life in the vast expanses of water differently. For example, if there is a predatory representative of fauna nearby, it, trying to disguise itself, will burrow in silt. But this is not the only reason for the neglect of the Jews. People professing Judaism believe that the Creator could not create such representatives of the animal world in its image, because their appearance repels. And in this there really is a rational kernel.

A serpentine small fish with a slippery body can easily escape even from a large and fast predator. In addition, its mucus can be toxic, that is, dangerous to other aquatic inhabitants. Let's talk about some of these species.


Char is red fish without scaleswhich belong to the salmon family. However, very fine hard plates are still present on the surface of his body. Due to their presence, char can significantly increase swimming speed, if necessary. Fish did not just get its name. When looking at her, it seems that she is completely devoid of scales, that is, naked. This is partly true.

Loaches have a cylindrical, slightly oblong body shape. Their head is slightly flattened. A distinctive feature of this inhabitant of water open spaces - large fins. And the loach has pronounced and large lips. It belongs to the number of schooling fish.

The length of the medium-sized individual is 20 cm, however, some of the few char species are shorter, their body length is from 10 to 12 cm. The fish feeds on zoobenthophages. The main competitor of the loach is the gudgeon. These fish reproduce quite quickly. The main reason for this is the unpretentiousness of water quality. Fishermen catch them using a fishing rod.


The catfish, like the char, is not completely devoid of scales, however, it is very small and has a close fit to the surface of the body. It’s hard to notice. However, even despite the absence of full-fledged solid plates, catfish is considered one of the most valuable fish in the fishing craft. The average length of an individual is 3-4 meters, but, under favorable conditions, catfish can grow up to 5 meters.

He is among the water hunters. Thanks to its large mouth, this representative of the fauna easily swallows small and large fish. Also, carrion is included in his diet. Som is the largest river predator. Despite poor eyesight, he is well versed in the water thanks to his long mustache.


This is one of the most popular. river fish without scalesbelonging to the serpentine family. An inexperienced eye can confuse it with a snake. This is not surprising, because the eel is really very similar to this animal, but its body is a little thicker.

The birthplace of the eel is the zone of the well-known Bermuda Triangle. The local current picks up fish eggs, quickly taking them to the fresh waters of European reservoirs. Interesting fact! When hunting, electric eel produces a fatal, for medium-sized fish, electric shock.

Fish without eel scales


In the marine industry, this fish is one of the most popular. Scientists distinguish more than 10 species of sturgeon. Each of them is united by a 5-row structure of special scutes of bugs (diamond-shaped bone scales).

The second distinguishing feature of the sturgeon is its head in the form of a cone. The jaw of this fish easily moves forward. By the way, there are absolutely no teeth on it. The lips of this fish are dense and fleshy. The structure of the sturgeon is invertebrate.

Sturgeon is famous for its excellent fecundity. By the way, for spawning, he goes into fresh water. In them, he prefers to winter. The diet of the sturgeon includes small inhabitants of the deep sea, such as:

  • Shellfish;
  • Gobies;
  • Anchovy;
  • Sprat.

Russian sturgeon


This white fish without scales found only in Lake Baikal. The main feature of the golomyanka is that 40% of its body is fat. This is a small but very beautiful inhabitant of Lake Baikal. The body length of this fish is from 20 to 25 cm. By the way, female golomyanki are larger than males. Scientists distinguish 2 types of this fish: large and small.

When the golomyanka swims, it seems that she flies like a butterfly. This is due to its expanding large fins located on the front of the body. Another characteristic feature of the golomyanka is its transparency. However, it is worth pulling the fish out of the water, and it will appear before you in white. But that is not all. Golomyanka is one of the few fish that give birth to live fry. Unfortunately, after giving birth, the female dies.


Mackerel belongs to pelagic sea ​​fish without scales. However, over the entire surface of her body are small, solid plates. Mackerel is considered quite valuable in the industry fish. Her meat is very healthy. It contains a large amount of vitamin B and fat, in addition, its meat is hearty and tasty. Another industrial advantage of mackerel is the absence of small seeds.


This representative of the water world has a serpentine physique. Loach is painted black. Over the entire surface of his slippery body there are dark small spots. This fish lives only in stagnant bodies of water. An important requirement for the village is the presence of a large number of dense algae.


Loach regularly rises to the surface of the water to enrich itself with oxygen. At the same time, he makes a specific sound, resembling a whistle. This representative of the fauna is characterized by excellent resourcefulness, which allows him to maneuver seamlessly in the water.

Food preferred by loach:

  • Worms
  • Larvae;
  • Remains of invertebrate animals;
  • Crayfish

Favorite food of this fish is caviar. Interesting fact! Japanese scientists are able to predict tsunamis and typhoons from maneuvers of a loach.


Among the fish that do not have solid plates on the body, the shark is conditionally classified. She has them, but their size and shape are non-standard. In structure, shark scales resemble teeth. Their shape is rhombic. Such small “cloves” fit very tightly together. The body of some sharks is covered with spikes over the entire surface.

Why is this predator classified as a fish without scales? Everything is very simple. The hard toothed plates covering her body are very smooth. If you pay attention exclusively to the skin of the shark, you might think that it belongs to the elephant.

This predatory aquatic creature is famous for its razor-sharp teeth. They have the shape of a cone. A shark feature is the absence of a swimming bladder. But this does not prevent her from being a full-fledged fish, since maneuvers are performed due to the presence of fins. This aquatic predator is classified as a cold-blooded animal.

Tiger shark

Moray eel

This serpentine fish without scales in the photo looks like a viper with big eyes. Under favorable conditions, the moray eel body can grow up to 2.5 meters. The weight of such a creature reaches 50 kg. The moray eels are completely absent.

Her dodgy body is covered with a lot of mucus, the main function of which is to protect against large predators. When another inhabitant of the water expanses tries to attack the moray eel, it easily eludes him. Despite the ability to avoid a fight, moray eels are quite strong fish. Often she attacks divers. A meeting with her often ends in death for them.

The moray eels fin is extended, therefore, its body shape is similar to the eel. Most of the time, her mouth is open. The nose of this fish is covered with a small mustache. By the way, it is moray eels tendrils that are the main bait for other fish, which perceive them as edible worms. Another distinctive feature of moray eels is sharp teeth, similar to the fangs of predators. Thanks to them, the fish easily splits the durable crustacean shell.

Pearl fish

This aquatic inhabitant belongs to the Karapus family. Scaleless Pearl Fish got its name for a reason. According to a common interpretation, one of the pearl catchers, diving deep into the water, near the oyster shell noticed a small fish that looked like a snake.

A long stay in such a "house" painted it in pearl color. To swim in the sink, the fish allows its miniature size. An interesting observation - pearl fish leads a lifestyle, depending on the degree of its independence.

Most often, they play the role of parasites, that is, creatures that can only survive due to the body of another representative of the animal world. Pearl fish prefers to settle in the anal pores of a sea cucumber. There she is for a long time, eating his eggs. Individuals with a high level of independence prefer to enter into symbiosis with other fish.

There is a pearl fish in the waters of the Pacific, Atlantic and Indian Ocean. In the industrial sector, it is not valued for 2 reasons. Firstly, its miniature size hinders the use, and, secondly, there are practically no useful substances in the composition of pearl fish meat.

Big-headed Alepisur

This fish is one of the marine. The large-headed aleposaur has a very thin, but elongated body, on top of which there is a wide fin, the number of rays on it is from 30 to 40. The color of this representative of the marine depths is gray-silver. In the mouth of the Alepisaur are long sharp teeth shaped like a dagger. It is found in the waters of all 4 oceans.

In appearance, the large-headed Alepisur resembles, rather, a small lizard than a fish. Even despite the complete absence of scales, it is very rarely caught to eat. The reason is the tasteless and useless meat. The large-headed alepisaur is one of the marine predators. He eats not only small fish, but also worms, mollusks, crayfish and squid.


The scales of this fish are absent, since it lives deep under water, preferring to mask in silt. The absence of the need for solid plates on the body of burbot is also associated with its dark habitat, and, as you know, one of the functions of the scales is the reflection of light.

To notice this fish at the bottom of the reservoir is almost impossible. Burbot is one of the best camouflage among fish. And their lack of scales is associated with the need for maneuvering in silt. This fish is classified as freshwater. Its distinguishing feature is an asymmetrical mouth. The upper jaw of the burbot is longer than the lower.

An interesting feature! The older the burbot, the brighter his body. It is known that in cool water, this fish is much more active than in warm water. Its diet is made up of small fish, frogs, invertebrates, crayfish and mollusks. Rarely burbot regales on animal remains.

Burbot fish without scales

This representative of the river and lake depths prefers to swim in clear water. Often burbots swim in ponds. The warmer the weather, the deeper they go to the bottom, because the water is colder there. Nalim are valued, first of all, for their skin, which, by the way, is very easily separated from his body.

Watch the video: 9 Kinds of Fish You Should Never Eat (February 2020).

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