Leech (Hirudinea is a class of invertebrate members belonging to the phylum Annelida) .

Hirudinea is a class of invertebrate members belonging to the phylum Annelida. Members of this type of worm have no hair, parapodia, and seta. [1] Leeches (Hirudinaria javanica) or pacet (Haemadippza zeylania) is an example of Hirudinae. This animal's living place is in fresh water, sea water, and on land. You must have known if the leech is a blood-sucking animal, the body there is a sucker at both ends are used to stick to the host's body. At the time of sucking, these leeches remove the painkillers and remove anti-clotting substances so that the victim's blood will not freeze. After sipping the blood, the leech will drop into the water. Leech body shape is flat, segmented, has a brownish color, and is hemaprodit. In mating season, klitelum will come out. After marriage, the tool secretes the cocoon to store eggs and sperm.

Animalia filum Annelida steemit blog indonesia.