What are the kinds of leeches?

Abstract: leeches live in rice fields, ditches, shallow water pollution pits and other places, suck the blood of people and animals, move very quickly, can swim in waves, and can also make ruler-like migration. Every warm spring is active, June to October is its spawning period, to winter often dormant in the nearshore wet mud, do not eat motionless, strong survival ability, let's take a look at the species of leeches!

Leeches live in rice fields, ditches, shallow water pollution pits and other places, suck the blood of people and animals, move very quickly, can swim in waves, and can also make ruler-like migration. Every warm spring is active, June to October is its spawning period, to winter often dormant in the nearshore wet mud, do not eat motionless, strong survival ability, let's take a look at the species of leeches!

Japanese medical leech

Japanese medical leeches, also known as medical leeches, are slightly flat and cylindrical, with a length of 3 cm and a width of 4 mm (fixed). The back is green with black, with 5 yellow vertical lines. The ventral face is flat, grayish green, without variegated markings. The body ring number is 103. The banding is not significant, accounting for 15 rings. The male reproductive foramen is between 31 and 32 rings. The female foramen is between 36 and 37 grooves. 5 pairs of eyes, arranged in an arc. There is a front sucker on the ventral front of the body. There are 6 longitudinal pleats of esophagus, 3 jaws, semicircle and well-developed jaw teeth. There is a rear sucker on the ventral side of the back, bowl-shaped, facing the ventral side, and the anus on the dorsal side.

Japanese medical leeches live in paddy fields and swamps, suck the blood of people and animals, move quickly, and can do wave swimming and ruler migration. They are active in spring, spawning from June to October and dormant in winter. The regenerative power is very strong, if it is cut off and raised, it can be regenerated from the broken part, which is distributed all over the country.

Wide-bodied golden leech

The wide-body gold thread vermiculite grows, slightly fusiform, flattened, 6-13 cm long and 0.8-2 cm wide, the back is usually dark green, with a longitudinal line composed of 6 fine yellow-black spots, and a deep dorsal midline. The ventral side is yellowish, with many irregular tea-green spots. The body ring number is 107. The banding is obvious, accounting for 15 rings. The male reproductive foramen is between 33 and 34 grooves. The female foramen is between 38 and 39 ring grooves. The eye is the same as that of Japanese medicine. The anterior sucker is small and the jaw teeth are underdeveloped.

Wide-bodied golden leeches live in paddy fields, rivers and lakes. Do not suck blood, feed on plankton, small insects, mollusc larvae and mud humus in water, which are distributed in most parts of the country.

Brown leech

Brown leeches, also known as cattle and soft-shelled turtles, have a wider body, slightly smaller, willow-shaped, flat back brownish green, and a longitudinal line composed of five fine green and black spots. The ventral surface is yellowish, very flat, with irregular dark green spots. I is similar to the wide-body golden leech, which is distributed in most parts of the country.