| Placobdella | |
|---|---|
 | |
| P. rugosa | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Class: | Clitellata |
| Subclass: | Hirudinea |
| Order: | Rhynchobdellida |
| Family: | Glossiphoniidae |
| Genus: | Placobdella Blanchard, 1893 |
Placobdella is a genus of leeches belonging to the family Glossiphoniidae. [1] Species can grow up to 6.5 cm in length, have extremely close eyes and mouths located on the rim or near the anterior (front) sucker. [2]
The genus has almost cosmopolitan distribution. [1]
(Incomplete list, )
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Haemadipsidae are a family of jawed leeches. They are a monophyletic group of hirudiniform proboscisless leeches. These leeches have five pairs of eyes, with the last two separated by two eyeless segments. The family is monotypic, containing only the subfamily Haemadipsinae, though as the family can apparently be divided into two or three distinct lineages, at least one of the proposed splits, while not a distinct family, might be a valid subfamily.
Helobdella is a genus of leeches in the family Glossiphoniidae, the freshwater jawless leeches. They occur worldwide.
Glossiphoniidae are a family of freshwater proboscis-bearing leeches. These leeches are generally flattened, and have a poorly defined anterior sucker. Most suck the blood of freshwater vertebrates like amphibians, crocodilians and aquatic turtles, but some feed on invertebrates like oligochaetes and freshwater snails instead. Although they prefer other hosts, blood-feeding species will opportunistically feed from humans.
Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites and have a clitellum, but leeches typically differ from the oligochaetes in having suckers at both ends and in having ring markings that do not correspond with their internal segmentation. The body is muscular and relatively solid, and the coelom, the spacious body cavity found in other annelids, is reduced to small channels.
Dactylosoma is a genus of parasitic alveolates of the phylum Apicomplexa.
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Erpobdellidae is a family of leeches. It is one of the four families belonging to the suborder Erpobdelliformes of the proboscisless leeches order, Arhynchobdellida.
Placobdella parasitica is a species of leech found in North America. Leeches are habitual ectoparasites of vertebrates in aquatic environments. Placobdella parasitica is differentiated from other members of the genus Placobdella by its smooth dorsal surface, simple to complicated pigmentation, and abdomen with 8 to 12 stripes.
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Placobdelloides siamensis is a species of blood-feeding jawless leech in the family Glossiphoniidae. It is commonly known as the Siam shield leech and is a prevalent ectoparasite on Malayemys turtles but has a range of Geoemydidae hosts. In high numbers it can cause severe anaemia and malnutrition which can lead to the death of its host.
Glossiphonia is a genus of Glossiphoniidae.
Alboglossiphonia is a genus of Glossiphoniidae.
Batracobdella is a genus of Glossiphoniidae. This genus is valid in Europe. But in North America, it has been synonymized to Desserobdella.
Haementeria is a genus of leeches in the family Glossiphoniidae. The genus was described in 1849 by Filippo De Filippi.
Hemiclepsis is a genus of leeches belonging to the family Glossiphoniidae.
Batracobdelloides is a genus of annelids belonging to the family Glossiphoniidae.
Torix is a genus of Rhynchobdellid leeches in the family Glossiphoniidae, found in Eastern Asia and Japan. Rana japonica, the Japanese brown frog, is the main host of T. tagoi.