Fasciola Jacksoni
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Fasciolidae is a
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
of
trematodes Trematoda is a class of flatworms known as trematodes, and commonly as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is a moll ...
and includes several parasites involved in the veterinary and medical sciences, which cause the disease
Fasciolosis Fasciolosis is a parasitic worm infection caused by the common liver fluke ''Fasciola hepatica'' as well as by '' Fasciola gigantica''. The disease is a plant-borne trematode zoonosis, and is classified as a neglected tropical disease (NTD). ...
. Fasciolidae is divided into five
genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...
by Olson et al. 2003. The family's various species are localised in
liver The liver is a major metabolic organ (anatomy), organ exclusively found in vertebrates, which performs many essential biological Function (biology), functions such as detoxification of the organism, and the Protein biosynthesis, synthesis of var ...
, gall bladder, and
intestine The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The tract is the largest of the body's systems, after the cardiovascular system. T ...
. Their life-cycle includes an
intermediate host In biology and medicine, a host is a larger organism that harbours a smaller organism; whether a parasitic, a mutualistic, or a commensalist ''guest'' (symbiont). The guest is typically provided with nourishment and shelter. Examples include ...
,
freshwater snail Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs t ...
s from the family
Lymnaeidae Lymnaeidae, common name the pond snails, is a Taxonomy (biology), taxonomic family (biology), family of small to large air-breathing freshwater snails, Aquatic animal, aquatic pulmonate gastropod mollusks, that belong to the clade Hygrophila (cl ...
.Jurášek, V., Dubinský, P., 1993. Veterinárna parazitológia. Príroda a.s., Bratislava, 382 pp.


Morphology

Adult trematodes of Fasciolidae range in length from 2 cm, for species of ''Parafasciolopsis'', and 10 cm, for species such as ''Fasciola gigantica''. The oral and
ventral Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position prov ...
suckers are usually located. the cercariae are of a gymnocephalic shape.


Systematics within family

According to Olson ''et al.'' 2003 Olson, P.D., Cribb, T.H., Tkach, V.V., Bray, R.A., Littlewood, D.T.J., 2003. Phylogeny and classification of the Digenea (Platyhelminthes: Trematoda)1. Int. J. Parasitol. 22, 733-755. the family has five genera: *''
Fasciola ''Fasciola'', commonly known as the liver fluke, is a genus of parasitic trematodes. There are three species within the genus ''Fasciola'': ''Fasciola nyanzae,'' ''Fasciola'' ''hepatica'' and ''Fasciola'' ''gigantica''. ''Fasciola hepatica'' an ...
'' **''
Fasciola hepatica ''Fasciola hepatica'', also known as the common liver fluke or sheep liver fluke, is a parasitism, parasitic trematode (fluke (flatworm), fluke or flatworm, a type of helminth) of the class (biology), class Trematoda, phylum Platyhelminthes. It ...
'' – Common liver fluke **''
Fasciola gigantica ''Fasciola gigantica'' is a parasitic flatworm of the Class (biology), class Trematoda, which causes tropical fascioliasis. It is regarded as one of the most important single platyhelminth infections of ruminants in Asia and Africa. The infection ...
'' **''Fasciola'' spp. – Japanese strain *'' Fascioloides'' **'' Fascioloides magna'' **'' Fascioloides jacksoni'' *'' Fasciolopsis'' **''
Fasciolopsis buski ''Fasciolopsis'' () is a genus of trematodes. They are also known as giant intestinal flukes. Only one species is recognised: ''Fasciolopsis buski''. It is a notable parasite of medical importance in humans and veterinary importance in pigs. I ...
'' *'' Parafasciolopsis'' **'' Parafasciolopsis fasciolaemorpha'' *'' Protofasciola'' **'' Protofasciola robusta''


References

{{Authority control Trematode families Veterinary helminthology