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Spirurida
Spirurida falls under the phylum Nematoda class Chromadorea and order Rhabditida. They are characterized by their elongated, cylindrical bodies and unsegmented structure. Like all nematodes, they have neither a circulatory nor a respiratory system. Some Spirurida, like the genus '' Gongylonema'', can cause disease in humans. One such disease is a skin infection with Spirurida larvae, called " creeping disease". Some species are known as eyeworms and infect the orbital cavity of animal hosts. Systematics The Camallanida are sometimes included herein as a suborder, and the Drilonematida are sometimes placed here as a superfamily. There are doubts about the internal systematics of the Spirurida, and some groups placed herein might belong to other spirurian or even secernentean lineages.ToL (2002) The following superfamilies are at least provisionally placed in the Spirurida: * Acuarioidea * Aproctoidea * Diplotriaenoidea * Filarioidea The Filarioidea are a Taxonomic ran ...
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Thelazioidea
Thelazioidea is a superfamily of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes in the large order (biology)">order Spirurida. Like all nematodes, they have neither a circulatory system, circulatory nor a respiratory system. Among the family (biology), families placed here, only the Rhabdochonidae are notably diverse. though none is considered to be monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ... Consequently, the Thelazioidea are among the mid-sized superfamilies of Spirurida. The families of the Thelazioidea are: * Pneumospiruridae * Rhabdochonidae * Thelaziidae References Spirurida Animal superfamilies {{Secernentea-stub ...
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Spiruroidea
Spiruroidea is a superfamily of Spirurida. They are nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (h ...s. References External links * Spirurida Animal superfamilies {{Secernentea-stub ...
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Habronematoidea
Habronematoidea is a superfamily of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes in the large order (biology)">order Spirurida. Like all nematodes, they have neither a circulatory system, circulatory nor a respiratory system. Though none of the family (biology), families placed here are overly diverse, they are quite large except for the monotypic Hedruridae. Consequently, the Habronematoidea are at present the second-largest superfamily of Spirurida, after the Filarioidea which contains the massively speciose Onchocercidae. The families of the Habronematoidea are: * Cystidicolidae Cystidicolidae is a family (biology), family of spirurian nematodes. It was described by Constantin Scriabine, Skrjabin in 1946. All members of the family are fish parasites, parasites of fish. Systematics According to the World Register of ... * Habronematidae * Hedruridae * Tetrameridae References Spirurida Animal superfamilies {{Secernentea-stub ...
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Secernentea
Secernentea was a class (biology), class of nematodes in the Classical Phylogeny System (Chitwood, 1958) and is no longer in use. This morphological-based classification system has been replaced by the Modern Phylogeny system, where taxonomy assignment is based on small subunit ribosomal DNA (SSU rDNA). Description Amphid apertures of Secernenteas are pore or slit-like. Some Secernenteas have deirids which are located near nerve ring. Secernenteas have posterior Phasmid (nematode anatomy), phasmids. The Excretory systems of nematodes, excretory system of a Secernentea is tubular. Cuticle, Cuticles of Secernenteas are striated in two to four layers. Lateral field is present. Secernenteas have three Esophageal gland, esophageal glands. Their esophageal structure varies. Male Secernenteas generally have one testis. Caudal Alae (nematode anatomy), alae are common in Secernenteas. Sensory papillae of Secernenteas are cephalic only. It might be caudal papillae in male Secern ...
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Gongylonema
''Gongylonema'' is a genus of thread-like nematode that was described by Molin in 1857. It is the only currently valid genus in the family Gongylonematidae, though the mysterious '' Spiruroides'' – usually placed in the Subuluridae, which are not closely related to ''Gongylonema'' among the Spiruria Spirurina is a suborder of nematode worms in the order Rhabditida. Spirurina contains a diverse group of worms that inhabit soil, water, and other bodies of organism. Footnotes References ses ITIS - systematics is OK but list of ta ... – might actually belong here. They are parasites of birds and mammals, transmitted by insects (especially beetles). Some 38 species are known, about 12 of which have been recorded in Europe. Several species are significant parasites of domestic animals, causing gongylonemiasis. Human infection by these nematodes is very rare: since its discovery fewer than 100 people have been reported to be infected with these parasites, always with the ...
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Dirofilaria Immitis
''Dirofilaria immitis'', also known as heartworm or dog heartworm, is a Parasitism, parasitic Nematode, roundworm that is a type of Filarioidea, filarial worm, a small thread-like worm, and which causes dirofilariasis. It is spread from host (biology), host to host through the bites of mosquitoes. Four genera of mosquitoes transmit dirofilariasis, ''Aedes'', ''Culex'', ''Anopheles'', and ''Mansonia (fly), Mansonia''. The definitive host is the dog, but it can also infect cats, wolf, wolves, coyotes, jackals, foxes, ferrets, bears, Earless seal, seals, sea lions and, under rare circumstances, humans. Adult heartworms often reside in the pulmonary arterial system (lung arteries) as well as the heart, and a major health effect in the infected animal host is damage to its lung vessels and tissues. In cases involving advanced worm infestation, adult heartworms may migrate to the right heart and the pulmonary artery. Heartworm infection may result in serious complications for the infec ...
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Acuarioidea
Acuariidae is a family of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes. Like all nematodes, they have neither a circulatory system">circulatory nor a respiratory system. They are the only family in Taxonomic rank, superfamily Acuarioidea, and number about 40 genera and 300 species, most of which are parasites of birds.Hallan (2007) Genera Several genera, particularly in the Seuratiinae, are monotypic. At least some of them are liable to be invalid. Subfamily Acuariinae Railliet, Henry & Sisoff, 1912 * '' Acuaria'' Bremser, 1811 * '' Cheilospirura'' Diesing, 1861 * '' Chevreuxia'' Seurat, 1918 * '' Chordatortilis'' Mendonça & Rodrigues, 1965 * '' Chordocephalus'' Alegret, 1941 * '' Cosmocephalus'' Molin, 1858 * '' Decorataria'' Sobolev, 1949 (sometimes included in ''Syncuaria'') * '' Desportesius'' Chabaud & Campana, 1949 * '' Dispharynx'' Railliet, Henry & Sisoff, 1912 (sometimes included in ''Synhimantus'') * '' Echinuria'' Soloviev, 1912 * '' Parac ...
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Nematode
The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (helminths) are the cause of soil-transmitted helminthiases. They are classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa. Unlike the flatworms, nematodes have a tubular digestive system, with openings at both ends. Like tardigrades, they have a reduced number of Hox genes, but their sister phylum Nematomorpha has kept the ancestral protostome Hox genotype, which shows that the reduction has occurred within the nematode phylum. Nematode species can be difficult to distinguish from one another. Consequently, estimates of the number of nematode species are uncertain. A 2013 survey of animal biodiversity suggested there are over 25,000. Estimates of the total number of extant species are su ...
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Filarioidea
The Filarioidea are a Taxonomic rank, superfamily of highly Generalist and specialist species, specialised Parasitism, parasitic nematodes. Species within this superfamily are known as filarial worms or filariae (singular filaria). Infections with parasitic filarial worms cause disease conditions generically known as filariasis. Drugs against these worms are known as filaricides. Introduction Filarioidea all are Generalist and specialist species, specialised parasites and the Host (biology), definitive host is always a vertebrate, a mammal, bird, reptile or amphibian, but ''not'' a fish. The Host (biology), intermediate host is always an arthropod. Most of Filarioidea parasitise wild species, birds in particular, but some, especially in the family Onchocercidae, attack mammals, including humans and some domestic animals. Conditions that result from parasitism by Onchocercidae include some of the most troublesome diseases of the warmer regions, including Onchocerciasis, river blin ...
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Diplotriaenoidea
Diplotriaenidae is a family of nematodes. Like all their relatives, they have neither a circulatory a or respiratory system. They are the only family in superfamily Diplotriaenoidea, if the Oswaldofilariidae are correctly placed with the Filarioidea and not here. Systematics Subfamilies and 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 ... of Diplotriaenidae are: Subfamily Diplotriaeninae *'' Quadriplotriaena'' *'' Diplotriaena'' - includes ''Diplotriaenoides'' *'' Chabaudiella'' Subfamily Dicheilonematinae *'' Monopetalonema'' - includes ''Politospiculum'' and ''Ornithosetaria'' *'' Petrovifilaria'' *'' Dicheilonema'' - includes ''Contortospiculum'' *'' Hastospiculum '' - includes ''Setarospiculum'' *'' Hamatospiculum'' - includes ''Parhamatospiculum'', ''Tytofilari ...
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