Piscicolidae
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Piscicolidae
The Piscicolidae are a family of jawless leeches in the order Rhynchobdellida that are parasitic on fish. They occur in both freshwater and seawater, have cylindrical bodies, and typically have a large, bell-shaped, anterior sucker with which they cling to their host. Some of the leeches in this family have external gills, outgrowths of the body wall projecting laterally, the only group of leeches to exchange gases in this way. Worldwide, around 60 genera and 100 species of leeches are in this family, all parasitic on the blood of marine, estuarine, and freshwater fishes. These leeches are less common in the tropics, and more abundant in temperate and polar waters. Taxonomy Historically, the Piscicolidae have been divided into three subfamilies: the Pontobdellinae, characterised by two pairs of pulsatile vesicles on each urosome segment; the Pontobdellinae, characterised by a single pair of pulsatile vesicles on each urosome segment; and the Platybdellinae, with no pulsatile ve ...
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Rhynchobdellida
Rhynchobdellida (from the Greek ''rhynchos'', mouth, and ''bdellein'', sucking), the jawless leeches or freshwater leeches, are an order (biology), order of aquatic leeches. Despite the common name "freshwater leeches", species are found in both sea and fresh water. They are defined by the presence of a wiktionary:protrusible, protrusible proboscis instead of jaws, and having Blood color, colourless blood. They move by "inchworming" and are found worldwide. The order contains 110 species, divided into 41 genera and three families. Members of the order range widely in length, usually between 7 and 40 mm. They are hermaphrodite. The order is not Monophyly, monophyletic. Appearance and eating habits Instead of jaws and teeth, Rhynchobdellidae have protrusible proboscises, which they use to penetrate the host's skin. Mouths of Rhynchobdellidae species are small holes from which the proboscis can be protruded. The proboscis then sucks out the desired bodily fluid from the hos ...
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Piscicola Geometra
''Piscicola'' is a genus of leeches 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 bod ... belonging to the family Piscicolidae. The species of this genus are found in Europe and Northern America. Species: * '' Piscicola annae'' Bielecki, 1997 * '' Piscicola borowieci'' Bielecki, 1997 * '' Piscicola geometra'' References {{Authority control Piscicolidae Animals described in 1818 ...
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Caspiobdella
''Caspiobdella'' is a genus of annelids belonging to the family Piscicolidae The Piscicolidae are a family of jawless leeches in the order Rhynchobdellida that are parasitic on fish. They occur in both freshwater and seawater, have cylindrical bodies, and typically have a large, bell-shaped, anterior sucker with which the .... The species of this genus are found in Europe. Species: *'' Caspiobdella caspica'' *'' Caspiobdella fadejewi'' *'' Caspiobdella tuberculata'' *'' Caspiobdella volgensis'' References Piscicolidae {{annelid-stub ...
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Calliobdella
''Calliobdella'' is a genus of annelids belonging to the family Piscicolidae The Piscicolidae are a family of jawless leeches in the order Rhynchobdellida that are parasitic on fish. They occur in both freshwater and seawater, have cylindrical bodies, and typically have a large, bell-shaped, anterior sucker with which the .... The species of this genus are found in Europe and Northern America. Species: *'' Calliobdella knightjonesi'' *'' Calliobdella lophii'' *'' Calliobdella mammillata'' *'' Calliobdella nodulifera'' *'' Calliobdella punctata'' References {{Taxonbar, from=Q5175101 Piscicolidae ...
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