Flat-headed type: Fingertip skin is thin and smooth, without sarcoma, with narrow flat head and wide flat head.
High head type: refers to head sarcoma confined to the top of the head, commonly known as goose head, hat and crown (generally used for pearl scale goldfish).
Lion head type: refers to the cultured goldfish (that is, goldfish with dorsal fins), with well-developed sarcoma on the top of the head, which extends down to the eyes and even the gill cover.
Tiger head type: refers to egg goldfish (that is, goldfish without back). The sarcoma on the top of the head is very developed, extending down to the bottom of the eyes and even to the gill cover.
2, goldfish eyes: normal eyes, longan, eye, blister eyes.
Normal eye: refers to the eyes similar to crucian carp, not protruding. Some varieties have different colors on both sides of their eyes.
Tianzhu: The eyeball is big, protruding from both eye sockets, like the eyes of the "dragon" in the ancient legend of China.
Looking at the sky eye: refers to the eyeball protruding from the orbit, turning up about 90 degrees, and the eyes facing the sky, also known as the sky eye.
Blister eye: refers to the big blisters under the eyeballs on both sides, which contain translucent liquid and are vesicular. A person whose blisters are too small to shake is called frog head. Some varieties have different colors on both sides of the eyes, and the colors of the two blisters are also different.
3. Goldfish's nose: What is a fluffy ball?
Hairball: There is a skin fold in the middle of the nostril, called nasal septum, which divides the nostril into two parts. A variety with a particularly developed nasal septum has two or four fleshy folds on its nose, which are called pompoms.
4. Golden fish gill cover: Golden fish gill cover can be divided into three types. ...
The gills of teleost are protected by bone cover, which consists of front cover, main cover, lower cover and intermaxillary cover. There is a free membrane on the posterior edge of gill cover, which is called gill cover membrane.
The gill cover of goldfish can be divided into three types:
Normal gill cover: there is no big variation in gill cover bone, and most goldfish gill covers belong to normal gill cover.
Gill turning: The rear edges of the main gill cover and the lower gill cover curl inward and outward, exposing some gill filaments, commonly known as gill turning (in fact, the gill cover does not curl, but the gill cover curls).
Transparent gill cover: some species of goldfish have thin gill cover bones, and the inner and outer epidermis of the gill cover are translucent. Some gill filaments can be observed from the outside, which makes the gill cover show the blood-red color of gill filaments, which is called transparent gill.
5. Scales of goldfish: There are four types of scales variation of goldfish. ...
There are four types of goldfish scale variation:
Normal scale: The scale is normal. There is basically no variation, and most goldfish scales belong to normal scales.
Pearl scale: the central part of the scale protrudes outward and is light in color, like a pearl embedded in the scale.
Transparent scale: there are no pigment cells and reflectors in the scale, which looks like a piece of glass.
Translucent scales: scales are mainly transparent scales, with a small amount of ordinary scales and reflective sheets.
6. Fins of goldfish: Fins are the main motor organs and body balance organs of fish. ...
Fin is the main motor organ and balance organ of fish. Generally speaking, the dorsal fin, anal fin and caudal fin of fish are located in the middle of both sides of the body, and they are not paired as single leaves, which are collectively called odd fins (single meaning); The pectoral fin and the ventral fin are located on both sides of the body, one on each side. They are paired. They are collectively called lateral fins (meaning paired). In addition to the biggest change in color, the fins of goldfish have also changed. Most of their fins are widened, lengthened, degenerated or shortened, or split into two leaves and four leaves. There are single and double anal fins, but no anal fins. The change of fin is one of the main characteristics to distinguish goldfish species;
(1) Dorsal fin: The function of fish dorsal fin is to maintain the upright balance organ of the body, so that the fish body is not easy to lean left and right. Goldfish are divided into species with dorsal fins and species without dorsal fins:
There are dorsal fin types-generally cultured goldfish, grass goldfish, some dzi beads, high heads and lion heads all have dorsal fins, and the dorsal fins are wider.
A species without dorsal fin-this species is called egg goldfish. The egg goldfish has a smooth back, although it has no back scales, but its body is short and slightly egg-shaped. The caudal fin is divided into two equal leaves, which can also maintain the balance of the body.
Species with incomplete dorsal fins-that is, dorsal fins are not completely degraded, and there are several fins. This kind of goldfish is generally eliminated at a young age.
(2) pectoral fins: There are a pair of pectoral fins near the gill cover, which are mainly used for changing direction and paddling, and can also be used as a sign to distinguish between males and females in the breeding season. Idyllization will appear on the male fin, but not on the female.
(3) Abdominal fins: There are a pair of abdominal fins between the pectoral fins and the anal fins, which can be used for accurate maneuvers, although they can't play the role of swimming. When the fish is healthy, the ventral fin extends outward, and when the ventral fin contracts close to the abdomen, it shows that there is something wrong with the fish's health and needs to be paid enough attention.
(4) Gluteal fin: The function of gluteal fin is similar to that of dorsal fin. The anal fin of goldfish is located behind the anus, and some species have a single anal fin (such as grass goldfish). In other species, different individuals have double anal fins, and some have single anal fins or no anal fins. Generally speaking, those with double gluteal fins are considered as excellent traits, and those without single gluteal fins are generally eliminated when they are young.
(5) Tail fin: The tail fin of fish has the function of propulsion and steering.
The tail fin of goldfish is changeable. Whether the caudal fin is symmetrical and beautiful can basically determine the position of this goldfish. The tail fin of goldfish can be roughly divided into the following categories:
Single tail fin-there are long tail and short tail, for example, the tail fin of grass goldfish is short tail and single tail, and the tail fin of anchovy is long tail and single tail.
Double fin-also known as open tail. In the embryonic stage, the skin behind the anus bifurcates and develops into an open tail. According to the number of bifurcation, the open tail can be divided into two types:
Trifoliate tail-the upper two tail leaves are connected and the lower two are separated to form a trilobal tail.
Four-leaf tail-the upper and lower leaves are separated to form a four-leaf tail.
The tail fin shape of goldfish can be divided into the following eight types:
Long tail-tail fin is about 2/3 of the total length of fish.
Short tail-the tail fin is about 1/3 of the total length of the fish.
Dovetail-a leaf has a layer of fins, and the tail fin is deeply forked, which looks like the tail of a swallow.
Butterfly Tail-The left and right leaves of the tail fin are Zhang Kaicheng-shaped and look like butterfly wings.
Wide tail-the tail fin is wide and fan-shaped, also called fan tail.
Phoenix tail-the tail fin is long and big, which looks like the legendary phoenix tail, especially the Chinese fish and the dzi pearl goldfish.
Peacock tail-the tail fin extends to the left and right, slightly T-shaped with the fish body, like peacock tail feather, especially gold produced in Japan.
Flip the tail-the tail fin has three leaves, and the ends of the lower two tail leaves are turned forward, especially the Japanese-made Tosaki.
7. The color of goldfish: Why is the body color of fish so bright?
Why are there so many colors of fish? That's because there are many kinds of fish pigment cells, mainly distributed in the dermis.
Fish have three basic types of pigment cells: melanocytes, red cells and yellow pigment cells.
Melanocytes are star-shaped and have many processes. Cells themselves also contain brown, black or gray-black pigment particles. The color of fish is related to the movement, concentration and diffusion of these pigment particles.
The structure of yellow pigment cells is similar to that of melanocytes, but there are two nuclei, and the pigment particles are small, which are orange-yellow or dark orange under light transmission.
Red pigment cells are rare in general fish, but they are common in tropical fish, and their distribution is also local. The cell structure is similar to that of melanocytes, and the pigment particles in red pigment cells can be concentrated and diffused in an instant. There is also a glorious cell (1ridocyte) or a reflector, which is a white crystal with strong reflective effect.
The color of fish is composed of basic pigment cells, but it also needs the cooperation of reflector. The bright and changeable body color of domestic goldfish is only caused by the reorganization and distribution of the above cells, the change of strength and density, or the disappearance of one or two of them. For example, red goldfish lacks melanocytes, black goldfish is dense, white goldfish melanocytes and yellow melanocytes have all disappeared, purple goldfish melanocytes are dense, yellow melanocytes are sparse, and blue goldfish lacks yellow melanocytes.
The types and contents of pigment cells and reflectors in fish are not only different for each fish, but also for different parts of the same fish. Pigment cells are mostly concentrated in the upper part of fish, while luster cells are mostly concentrated in the lower part of fish. The number, distribution area, pigment collocation and the reflective ability of the reflector determine the color and stripes of the whole fish. Common crucian carp, for example, has a gray-black back, black upper sides and white lower sides, and a silvery white abdomen. This phenomenon can be explained as follows: pigment cells are concentrated in the back and the upper half of both sides, and less and less until the abdomen is gray and pure white, which is caused by little pigment.
The color of fish is not fixed, but will change with environment, age, sex, health and emotional impulse, sometimes in an instant.
The colors of goldfish can be divided into the following categories:
Blue-white-red-black-blue-purple-red-white-red-black-white-blue-white-purple-blue-red-black-white-purple-red-blue-white, five flowers are arranged in sequence.