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Trichostrongylus Affinis
''Trichostrongylus affinis'' is a species of parasitic nematode in the genus ''Trichostrongylus''. It primarily infects cottontails (''Sylvilagus''), but has also been found in the hispid cotton rat (''Sigmodon hispidus'') and the marsh rice rat (''Oryzomys palustris'').Kinsella, 1988, table 1 See also * List of parasites of the marsh rice rat A variety of parasites have been recorded from the marsh rice rat (''Oryzomys palustris''), a semiaquatic rodent found in the eastern and southern United States, north to New Jersey and Kansas and south to Florida and Texas, and in Tamaulipas ... References Literature cited *Kinsella, J.M. 1974Comparison of helminth parasites of the cotton rat, ''Sigmodon hispidus'', from several habitats in Florida ''American Museum Novitates'' 2540:1–12. *Kinsella, J.M. 1988. Comparison of helminths of rice rats, ''Oryzomys palustris'', from freshwater and saltwater marshes in Florida. ''Proceedings of the Helminthological Society o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematode
The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant- parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa, and unlike flatworms, have tubular digestive systems 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 described to date vary by author and may change rapidly over time. A 2013 survey of animal biodiversity published in the mega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichostrongylus
''Trichostrongylus'' species are nematodes (round worms), which are ubiquitous among herbivores worldwide, including cattle, sheep, donkeys, goats, deer, and rabbits.Garcia LS, editor. Diagnostic Medical Parasitology. 5 ed. Washington, DC: ASM Press; 2007.Strickland GT, editor. Hunter's Tropical Medicine and Emerging Infectious Diseases. 8 ed. Philadelphia, PA: WB Saunders Company; 2000. At least 10 ''Trichostrongylus'' species have been associated with human infections. Infections occur via ingestion of infective larvae from contaminated vegetables or water. Epidemiological studies indicate a worldwide distribution of ''Trichostrongylus'' infections in humans, with the highest prevalence rates observed in individuals from regions with poor sanitary conditions, in rural areas, or who are farmers / herders. Human infections are most prevalent in the Middle East and Asia, with a worldwide estimated prevalence of 5.5 million people. Life cycle Eggs are passed through the feces o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cottontail
Cottontail rabbits are the leporid species in the genus ''Sylvilagus'', found in the Americas. Most ''Sylvilagus'' species have stub tails with white undersides that show when they retreat, giving them their characteristic name. However, this feature is not present in all cottontails nor is it unique to the genus. The genus is widely distributed across North America, Central America and northern and central South America, though most species are confined to some particular regions. Most species live in nests called forms, and all have altricial young. An adult female averages three litters per year, which can occur in any season; occurrence, and litter size depend on several factors including time of the year, weather, and location. The average litter size is four but can range from as few as two to as many as eight, most of whom do not go on to survive to adulthood. Cottontail rabbits show a greater resistance to myxomatosis than European rabbits. Evolution Cottontails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hispid Cotton Rat
The hispid cotton rat (''Sigmodon hispidus'') is a rodent species long thought to occur in parts of South America, Central America, and southern North America. However, recent taxonomic revisions, based on mitochondrial DNA sequence data, have split this widely distributed species into three separate species (''S. hispidus'', ''S. toltecus'', and ''S. hirsutus''). The distribution of ''S. hispidus'' ranges from Arizona in the west to Virginia to the east and from the Platte River in Nebraska in the north to, likely, the Rio Grande in the south, where it meets the northern edge of the distribution of '' S. toltecus'' (formerly ''S. h. toltecus''). Adult size is total length ; tail , frequently broken or stubbed; hind foot ; ear ; mass . They have been used as laboratory animals. Taxonomy The currently accepted scientific name for the hispid cotton rat is ''Sigmodon hispidus''. It is a member of the family Cricetidae.(Animal Diversity Web, University of Michigan Museum of Zool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsh Rice Rat
The marsh rice rat (''Oryzomys palustris'') is a semiaquatic North American rodent in the family Cricetidae. It usually occurs in wetland habitats, such as swamps and salt marshes. It is found mostly in the eastern and southern United States, from New Jersey and Kansas south to Florida and northeasternmost Tamaulipas, Mexico; its range previously extended further west and north, where it may have been a commensal in corn-cultivating communities. Weighing about , the marsh rice rat is a medium-sized rodent that resembles the common black and brown rat. The upperparts are generally gray-brown, but are reddish in many Florida populations. The feet show several specializations for life in the water. The skull is large and flattened, and is short at the front. John Bachman discovered the marsh rice rat in 1816, and it was formally described in 1837. Several subspecies have been described since the 1890s, mainly from Florida, but disagreement exists over their validity. The Florida Key ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Parasites Of The Marsh Rice Rat
A variety of parasites have been recorded from the marsh rice rat (''Oryzomys palustris''), a semiaquatic rodent found in the eastern and southern United States, north to New Jersey and Kansas and south to Florida and Texas, and in Tamaulipas, far northeastern Mexico. Some of these parasites are endoparasites, internal parasites, while others are ectoparasites, external parasites. Parasitologist John Kinsella compared the endoparasites of marsh rice rats in a saltwater marsh at Cedar Key and a freshwater marsh at Paynes Prairie, both in Florida, in a 1988 study. He found a total of 45 species, a number unequaled in rodents. This may be related to the diverse habitats the rice rat uses and to its omnivorous diet; it eats a variety of animals which may serve as intermediate hosts of various parasites. The endoparasites in the saltwater marsh were dominated by trematodes (flukes), and those of the freshwater marsh by nematodes (roundworms). Endoparasites were found in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematodes Described In 1924
The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments. Less formally, they are categorized as Helminths, but are taxonomically classified along with arthropods, tardigrades and other moulting animals in the clade Ecdysozoa, and unlike flatworms, have tubular digestive systems 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 described to date vary by author and may change rapidly over time. A 2013 survey of animal biodiversity published in the mega journ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichostrongylidae
Trichostrongylidae is a family of nematode in the suborder Strongylida. Genera Genera: * '' Africanastrongylus'' Hoberg, Abrams & Ezenwa, 2008 * '' Amidostomoides'' Petrova, 1987 * '' Arnfieldia'' Sarwar, 1957 * '' Ashworthius'' Le Roux, 1930 * '' Batrachostrongylus'' Yuen, 1963 * '' Biogastranema'' Rohrbacher & Ehrenford, 1954 * '' Camelostrongylus'' Orloff, 1933 * '' Chabaudstrongylus'' Durette-Desset & Denke, 1978 * '' Cnizostrongylus'' Chabaud, Durette-Desset & Houin, 1967 * '' Cooperia'' Ransom, 1907 * '' Durettestrongylus'' Guerrero, 1983 * '' Filarinema'' Mönnig, 1929 * '' Gazellostrongylus'' Yeh, 1956 * '' Graphidiella'' Olsen, 1948 * '' Graphidioides'' Cameron, 1923 * ''Graphidium'' Railliet & Henry, 1909 * '' Graphinema'' Guerrero & Rojas, 1969 * ''Haemonchus'' Cobb, 1898 * '' Hamulonema'' Hoberg & Abrams, 2008 * '' Heligosomoides'' * '' Hexapapillostomum'' Lomakin, 1991 * '' Hoazinstrongylus'' Magalhães Pinto & Corrêa Gomes, 1985 * '' Hyostrongylus'' Hall, 1921 * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
