Alias: sea slug
Classification: sea hare mollusks (Mollusca), Gastropoda (Gastropoda), the order of the shieldless (Anaspidea), the sea hare family (Aplysiidae) animals collectively.
Distribution: Sea hares are distributed in the warm sea area of the world, China's warm sea area is also produced, Fujian, Guangdong coastal fishermen for artificial breeding.
Introduction of the sea hare
The sea hare is a nudibranch. It is a special member of the mollusk family whose shell degenerates into a small piece of bone buried in the outer coat membrane. Sea hares are small, usually only 10 centimeters in length and weighing about 130 grams. The sea hare is not a mammal and has no fur on the outside of its body. It belongs to the mollusc phylum Gastropoda. But with the common gastropods (such as abalone, snails, snails) is different: there is no limestone shell, only a layer of thin and semi-transparent cuticular membrane covering the body (this is the same as slugs, so also known as sea slugs). The body is ovoid, and the body can be deformed when moving.
The sea hare is not a rabbit. Sea hare shrugged up two ears (actually tentacles), the shape of a rabbit, head in front of a back, just no hair. It has two pairs of antennae, after the antennae longer, when it does not move, like a squatting on the ground erect a pair of large ears of a small white rabbit, and thus the earliest by the Romans called the sea hare. Later, it was recognized by the world, and the sea hare got its name. The Japanese call it the "rain tiger". The sea hare is a mollusk, a gastropod. Sea hare head of the two pairs of clear division of labor tentacles, the front of a pair of slightly shorter, specializing in the sense of touch; after a pair of slightly longer, specializing in the sense of smell. Sea hare crawling on the seabed, the back of the pair of tentacles separated into a "figure of eight" shape, forward diagonally stretched out, sniffing around the odor, resting this pair of tentacles immediately together, straight up, just like the rabbit's two long ears.
There are many species of sea hare, the common ones are "black fingerprint sea hare", "blue-spotted dorsal-anal sea hare" and "spotted sea hare". The foot of the sea hare is quite wide, and the two sides of the foot lobe are well developed, with the back side of the foot extending towards the back. Normally, the sea hare uses its feet to crawl on the beach or underwater, and swims short distances with the movement of its feet.
The sea hare is a mollusk, a shellfish that lives in shallow waters. However, the shell has degenerated into a thin, transparent, non-spiral, horny shell that is buried under the dorsal coat membrane and is not visible from the outside.
The sea hare prefers to live in an environment with clear water, open currents and seaweeds, and feeds on a variety of seaweeds. It has a very special set of enemy avoidance skills, is to eat what color seaweed will become what color. Such as a kind of red algae eating sea hare body rose red, eat inkhorn algae sea hare body is brownish green. Some sea hare body surface also has a fluffy and dendritic protrusions, thus making the sea hare's body type, body color and pattern and habitat in the environment of the seaweed is very similar, so it avoids a lot of trouble and danger for themselves.
The sea hare is capable of both passive avoidance and active defense. In the sea hare body there are two kinds of glands, one is called purple gland, born in the edge of the outer coat membrane underneath, in case of enemy, can release a lot of purple-red liquid, the surrounding seawater will be dyed purple, to escape from the enemy's line of sight. There is also a poisonous gland in the anterior part of the outer coat membrane, can secrete a slightly acidic milky liquid, the smell is unpleasant, the other side if contacted with this liquid will be poisoned and injured, or even die, so the enemy smells this odor, far away from avoidance, is the chemical weapon of the imperial enemy.
Spring is the breeding season of the sea hare, and the hermaphrodite sea hare carries out heterologous fertilization. The sea hare is very special: generally often three or five to a dozen in a string for the cross, this time the front of a sea hare as a female, the last one as a male, the middle of the sea hare in front of it as a male, the sea hare behind it as a female, this cross lasts a longer period of time. Egg-laying takes place during copulation or after a few hours of separation. A lot of eggs, but few eggs can hatch, are wrapped in strips of gelatinous filaments, the Guangdong coast called "sea vermicelli", is a nutritious and delicious food, but also anti-inflammatory and clearing the heat of the good medicine.