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Hassalstrongylus Dollfusi
''Hassalstrongylus dollfusi'' is a nematode worm of the genus ''Hassalstrongylus'', first described under the name ''Longistriata dollfusi'' by Carlos Díaz-Ungría in 1963 who named it ''dollfusi'' as an homage to French parasitologist Robert-Philippe Dollfus. The species was transferred to the genus ''Hassalstrongylus'' in 1971 by Marie-Claude Durette-Desset. Serrano et al. redescribed the species in 2021. Morphology ''Hassalstrongylus dollfusi'' is a medium-sized nematode (3-10 mm in length), generally uncoiled, sometimes loosely coiled in 1–3 spirals. According to Serrano et al. (2021), characters of ''Hassalstrongylus dollfusi'' males are: the morphology of the caudal bursa and the peculiar shape of the distal tip of the Spicule (nematode anatomy), spicules. Characters of the female are: the dorsal cuticular inflation at ovejector level and the subventral postvulvar alae supported by hypertrophied struts. Biology and distribution The species is parasitic in the small ... [...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-Parasitism, 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 Arthropod, arthropods, Tardigrade, tardigrades and other moulting animalia, animals in the clade Ecdysozoa, and unlike platyhelminthe, flatworms, have tubular digestion, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligoryzomys Fornesi
''Oligoryzomys fornesi'', also known as Fornes' colilargo,Musser and Carleton, 2005 is a species of rodent in the genus ''Oligoryzomys'' of family Cricetidae. It is found from northeastern Brazil via Paraguay into northeastern Argentina. Its karyotype A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is disce ... has 2n = 62 and FNa = 64. References Literature cited * *Weksler, M., Bonvicino, C., D'Elia, G. and Pardinas, U. 2008. . In IUCN. IUCN Red List of Threatened Species. Version 2009.2.www.iucnredlist.org. Downloaded on November 27, 2009. Oligoryzomys Mammals described in 1973 {{Oligoryzomys-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heligmonellidae
Heligmonellidae is a family of nematodes belonging to the order Rhabditida. Genera A few genera: * '' Acanthostrongylus'' Travassos, 1937 * '' Alippistrongylus'' Digiani & Kinsella, 2014 * '' Brevistriata'' Travassos, 1937 *'' Guerrerostrongylus'' Sutton and Durette-Desset, 1991 * '' Hassalstrongylus'' Durette-Desset, 1971 *'' Nippostrongylus'' Lane, 1923 *''Odilia Odile of Alsace, also known as Odilia and Ottilia, born c. 662 - c. 720 at Mont Sainte-Odile), is a saint venerated in the Catholic Church and the Eastern Orthodox Church. She is a patroness saint of good eyesight and of the region of Alsace. ...'' Durette-Desset, 1973 References {{Taxonbar, from=Q19944729 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematodes Described In 1963
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 jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligoryzomys
''Oligoryzomys'' is a genus of rodents in the tribe Oryzomyini of family Cricetidae. Many species are known as pygmy rice rats or colilargos.Musser and Carleton, 2005 The genus is found from Mexico to Tierra del Fuego and includes approximately 17 species. In Argentina and Chile, ''Oligoryzomys longicaudatus'' and other members of the genus represent the reservoir for the hantavirus strain Andes virus (ANDV) (Wells et al., 1997; Levis et al., 1998; Cantoni et al., 2001). Taxonomy The genus ''Oligoryzomys'' is included in the subfamily Sigmodontinae of the family Cricetidae. The genus is placed in the Oryzomyini tribe, first proposed by Oldfield Thomas in the early 20th century. It includes genera that have certain dental features of the upper and lower molars and a long palate which extends past the third molars. More recently, molecular analysis and morphological data has placed the genus in Clade C, alongside ''Neacomys'', ''Microryzomys'' and ''Oreoryzomys''. Characteristics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Akodon Azarae
''Akodon azarae'', also known as Azara's akodontMusser and Carleton, 2005, p. 1093 or Azara's grass mouse, is a rodent species from South America. It is found from southernmost Brazil through Paraguay and Uruguay into eastern Argentina. It is named after Spanish naturalist Félix de Azara Félix Manuel de Azara y Perera (18 May 1746 – 20 October 1821) was a Spanish military officer, naturalist, and engineer. Life Félix de Azara was born on 18 May 1746 in Barbunales, Aragon. He joined the army and attended a Spanish military .... References Literature cited *D'Elia, G. and Pardinas, U. 2008. . In IUCN. IUCN Red List of Threatened Species. Version 2009.2.www.iucnredlist.org. Downloaded on April 2, 2010. *Musser, G.G. and Carleton, M.D. 2005Superfamily Muroidea Pp. 894–1531 in Wilson, D.E. and Reeder, D.M. (eds.)Mammal Species of the World: a taxonomic and geographic reference. 3rd ed Baltimore: The Johns Hopkins University Press, 2 vols., 2142 pp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holochilus Chacarius
''Holochilus chacarius'', also known as the Chacoan marsh ratMusser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. or Chaco marsh rat, is a semiaquatic rodent species in the family Cricetidae. It is found in Argentina and Paraguay within the Gran Chaco. Description This marsh rat is one of the smallest in the genus. The head-and-body length is between and the tail length is between . The dorsal pelage is pale reddish-brown, with long black guard hairs, the flanks are buff or ochre, the throat and chest are white and the rest of the underparts are buff or grey, the hairs having white bases. Distribution and habitat The Chaco marsh rat is native to Paraguay and the notheasten part of Argentina, being present in the provinces of Salta, Jujuy, Tucumán, Formosa, Chaco and Córdoba. It is a semi-aquatic s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligoryzomys Nigripes
''Oligoryzomys nigripes'', also known as the black-footed colilargo or the black-footed pygmy rice rat, is a rodent in the genus ''Oligoryzomys'' of family Cricetidae. Oligoryzomys nigripes is a species that has been further divided into different sister taxa throughout history. It is found in different countries in South America.Weksler, M. & Bonvicino, C.R. 2005. Taxonomy of pygmy rice rats genus ''Oligoryzomys'' Bangs, 1900 (Rodentia, Sigmodontinae) of the Brazilian Cerrado, with the description of two new species. Arquivos do Museu Nacional 63(1):119. It is a large species with long ears, dark yellow to dark brown upperparts, sharply delimited from the whitish underparts, and often a pink girdle on the chest. This species of rat spends much of its life among the trees. The karyotype is 2n = 62, FNa = 78–82. Synonym species Two other species, '' Oligoryzomys delticola'' (also known as the delta pygmy rice rat or the large colilargo) and '' Oligoryzomys eliurus'' (also kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligoryzomys Flavescens
''Oligoryzomys flavescens'', also known as the flavescent colilargo or yellow pygmy rice rat is a species of rodent in the genus ''Oligoryzomys'' of family Cricetidae. It is found in southern South America, occurring in southern Brazil, Paraguay, Uruguay, and northeastern Argentina. Its karyotype has 2n = 64-66 and FNa = 66-70. Description The dorsal fur of ''Oligoryzomys flavescens'' consists of bright orangish-brown hairs mixed with blackish hairs, the hairs on the flanks are all orange and the underparts are yellowish-grey. The boundary between the upper parts and the underparts is indistinct, grading from one colour to the other. The head-and-body length averages and the tails averages . Skull features that distinguish this species include the long incisive foramina (openings in the hard palate) that usually reach the first molar, and the short mesopterygoid fossa (a depression behind the end of the palate) which does not extend as far as the third molar. Distribution ''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hassalstrongylus
''Hassalstrongylus'' is a genus of nematode worms that infect mostly muroid rodents from eastern North America to South America. The genus is part of the Heligmonellidae and related to genera like '' Stilestrongylus''. *''Hassalstrongylus aduncus'' ('' Sigmodon hispidus'', '' Rattus'' sp.) *'' Hassalstrongylus argentinus''Durette-Desnet, 1971 *'' Hassalstrongylus beta'' *''Hassalstrongylus bocqueti'' (''Oryzomys couesi'', '' Handleyomys melanotis'', ''Oligoryzomys fulvescens'')Underwood et al., 1986 *'' Hassalstrongylus chabaudi'' (''Wiedomys pyrrhorhinos'')Diaw, 1976 *'' Hassalstrongylus dessetae'' ('' Neacomys'' sp.) *''Hassalstrongylus dollfusi'' ('' Mus musculus'') *'' Hassalstrongylus echalieri'' ( Oryzomyini sp.) *'' Hassalstrongylus epsilon'' (''Nectomys squamipes'', ''Akodon cursor'')Gomes et al., 2003 *'' Hassalstrongylus forresteri''Durette-Desset, 1974 *'' Hassalstrongylus hoineffae'' (''Oligoryzomys nigripes'', ''Calomys callosus'', ''Wiedomys pyrrhorhinos'')Magalhã ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cricetidae
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has members throughout the Americas, Europe and Asia. Characteristics The cricetids are small mammals, ranging from just in length and in weight in the New World pygmy mouse up to and in the muskrat. The length of their tails varies greatly in relation to their bodies, and they may be either furred or sparsely haired. The fur of most species is brownish in colour, often with a white underbelly, but many other patterns exist, especially in the cricetine and arvicoline subfamilies. Like the Old World mice, cricetids are adapted to a wide range of habitats, from the high Arctic to tropical rainforests and hot deserts. Some are arboreal, with long balancing tails and other adaptations for climbing, while others are semiaquatic, with w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
