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Thelaziidae
Thelaziidae is a family of spirurian nematodes, which form the mid-sized lineage of the superfamily Thelazioidea. Like all nematodes, they have neither a circulatory nor a respiratory system. They number 7 genera or so, with a few dozen species all together. Mostly parasites of birds, a few have also been found in other vertebrates.Hallan (2007) Systematics The subfamily Oxyspirurinae is monotypic, as are several little-known genera in the Thelaziinae; these all might not be valid. All together, the systematic layout of this family is liable to change and cannot be considered more than tentative. Subfamily Oxyspirurinae Skrjabin, 1916 * '' Oxyspirura'' Dräsche in Stossich, 1897 Subfamily Thelaziinae Skrjabin, 1915 * '' Ceratospira'' Schneider, 1866 * '' Hempelia'' Vaz, 1937 * '' Pancreatonema'' McVicar & Gibson, 1975 * '' Pericyema'' Railliet Louis-Joseph Alcide Railliet (also known as Alcide Railliet, born 11 March 1852 at La Neuville-lès-Wasigny in the Ardennes – die ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelazia Callipaeda
''Thelazia callipaeda'' is a parasitic nematode, and the most common cause of thelaziasis (or eyeworm infestation) in humans, dogs and cats. It was first discovered in the eyes of a dog in China in 1910. By 2000, over 250 human cases had been reported in the medical literature. Morphology The adult ''Thelazia callipaeda'' worm typically measures 5 to 20 mm in length and 250 to 800 µm in diameter. The males tend to be smaller than the females in size. In distinguishing this species from other worms, they have a distinct buccal capsule and a cuticle with spaced transverse striations giving it a ridged appearance. Adult females could also be identified by the position of their vulva which is anterior to the oesophagus-intestinal junction. The males can be distinguished by their possession of five pairs of postcloacal papillae. Hosts In addition to humans, cats and dogs, definitive hosts of ''T. callipaeda'' include the wolf (''Canis lupus''), raccoon dog (''Nyctereutes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelazia
''Thelazia'' is a genus of nematode worms which parasitize the eyes and associated tissues of various bird and mammal hosts, including humans. They are often called "eyeworms", and infestation with ''Thelazia'' species is referred to as " thelaziasis" (occasionally spelled "thelaziosis"). Adults are usually found in the eyelids, tear glands, tear ducts, or the so-called "third eyelid" (nictitating membrane). Occasionally, they are found in the eyeball itself, either under the conjunctiva (the membrane that covers the white part of the eye) or in the vitreous cavity of the eyeball. All species of ''Thelazia'' for which the life cycle has been studied are transmitted by species of Diptera (flies) which do not bite, but which feed on tears. Representative species *''Thelazia anolabiata'' ( Molin, 1860) ** Definitive hosts: Andean cock-of-the-rock (''Rupicola peruviana'') and many other Brazilian birds ** Intermediate hosts: Not known ** Distribution: South America *'' Thelazia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thelazioidea
Thelazioidea is a superfamily of spirurian nematodes in the large order Spirurida. Like all nematodes, they have neither a circulatory nor a respiratory system. Among the 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 "unispe ... 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Marie Ducrotay De Blainville
Henri Marie Ducrotay de Blainville (; 12 September 1777 – 1 May 1850) was a French zoologist and anatomist. Life Blainville was born at Arques, near Dieppe. As a young man he went to Paris to study art, but ultimately devoted himself to natural history. He attracted the attention of Georges Cuvier, for whom he occasionally substituted as lecturer at the Collège de France and at the Athenaeum Club, London. In 1812 he was aided by Cuvier in acquiring the position of assistant professor of anatomy and zoology in the Faculty of Sciences at Paris. Eventually, relations between the two men soured, a situation that ended in open enmity. In 1819, Blainville was elected a member of the American Philosophical Society in Philadelphia. In 1825 he was admitted a member of the French Academy of Sciences; and in 1830 he was appointed to succeed Jean-Baptiste Lamarck in the chair of natural history at the museum. Two years later, on the death of Cuvier, he obtained the chair of comparative a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Augustin Guillaume Bosc
Louis Augustin Guillaume Bosc (or Louis-Augustin Bosc d'Antic) (29 January 1759 – 10 July 1828) was a French botanist, invertebrate zoologist, and entomologist. Biography Bosc was born in Paris, the son of Paul Bosc d’Antic, a medical doctor and chemist. He studied at Dijon, where he was the pupil of botanist Jean-François Durande and chemist Louis-Bernard Guyton-Morveau. Being unable to become an artilleryman, he worked initially for the office of the controller general and then for the comptroller of the postal service. In time he took courses in botany under Antoine-Laurent de Jussieu and met botanist René Desfontaines and naturalist Pierre Marie Auguste Broussonet. He also took up with Jean Marie Roland and Madame Roland and formed a lasting relationship with Danish entomologist Johan Christian Fabricius. While working for the postal service he carried out work on natural history, publishing a description of a new species of fly, Orthezia characais, and a method of pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railliet
Louis-Joseph Alcide Railliet (also known as Alcide Railliet, born 11 March 1852 at La Neuville-lès-Wasigny in the Ardennes – died 25 December 1930) was a French veterinarian and helminthologist. Professor at the Veterinary School of Alfort, he is considered one of the founders of modern parasitology and wrote several books of veterinary parasitology. He chaired the Société zoologique de France in 1891. He was a member of the French Académie Nationale de Médecine, from 29 December 1896 to his death. He received the Legion of Honor. Tributes Railliet's name is honoured by several genera: '' Raillietia'' (Acari), '' Raillietina'' ( Cestodes), '' Raillietascaris'', '' Raillietnema'' and '' Raillietstrongylus'' (Nematodes), '' Raillietiella'' (Pentastomida), and the Acari family Raillietiidae. Numerous species were named after Railliet, such as ''Amidostomum raillieti, Angiocaulus raillieti, Aspidodera raillieti, Conoweberia raillieti, Eucoleus raillieti, Haemostrongylus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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