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Praobdellidae
Praobdellidae is a family of hematophagous leeches which live on the mucous membranes of mammals and sometimes invertebrates. These are internal parasites that enter the body through natural orifices (usually nasal cavities and pharynx, more rarely the lower respiratory tract, anus, urethra, and vagina), and cause hirudiniases. These species are characterized by a reduced number of teeth, and a posterior sucker larger than the previous one. The latter may be involved in fixation on moist surfaces such as mucous membranes. A 2017 paper discovered they did not exclusively infest mammals; individuals were recorded feeding on a Japanese freshwater crab, '' Geothelphusa dehaani.'' Genera The ''Interim Register of Marine and Non-marine Genera'' taxon details: Praobdellidae Sawyer, 1986 (retrieved 31 August 2021) and ''WoRMS'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyrannobdella Rex
''Tyrannobdella'' is a monotypic genus of leech, of family Praobdellidae, found in South America in the upper reaches of the Amazon. This newly found genus of leech takes sustenance from the mucous membranes of the mammalian upper respiratory tract, and is known to feed upon humans. It has eight teeth. ''Tyrannobdella rex'' was discovered feeding upon the mucous membrane of a girl who had recently bathed in the upper Amazon in Peru. Genetic studies show that it is closely related to '' Dinobdella ferox'', a similar species found in Taiwan. Characteristics Unlike related leeches, ''Tyrannobdella rex'' has a single jaw with one row of teeth. Its eight teeth are disproportionately large, with a length of up to 0.13 mm, which inspired discoverers of the species to use a name reminiscent of '' Tyrannosaurus rex''. These teeth are about five times as long as those in the related genus ''Limnatis''; most often one will only see six teeth of ''T. rex'' with a microscope as the ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyrannobdella
''Tyrannobdella'' is a monotypic genus of leech, of family Praobdellidae, found in South America in the upper reaches of the Amazon. This newly found genus of leech takes sustenance from the mucous membranes of the mammalian upper respiratory tract, and is known to feed upon humans. It has eight teeth. ''Tyrannobdella rex'' was discovered feeding upon the mucous membrane of a girl who had recently bathed in the upper Amazon in Peru. Genetic studies show that it is closely related to '' Dinobdella ferox'', a similar species found in Taiwan. Characteristics Unlike related leeches, ''Tyrannobdella rex'' has a single jaw with one row of teeth. Its eight teeth are disproportionately large, with a length of up to 0.13 mm, which inspired discoverers of the species to use a name reminiscent of '' Tyrannosaurus rex''. These teeth are about five times as long as those in the related genus ''Limnatis''; most often one will only see six teeth of ''T. rex'' with a microscope as the ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnatis (leech)
''Limnatis'' is a genus of freshwater leeches, recorded from Europe, Africa and western Asia.GBIF ''Limnatis'' Moquin-Tandon, 1827 Authorities disagree whether this genus should be placed in the family Hirudinidae or . Species ''Limnatis'' includes the following species: # '''' Johansson, 1927 # '' |
Stereomicrograph
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Leeches
Leeches are segmented parasitism, parasitic or Predation, predatory worms that comprise the Class (biology), subclass Hirudinea within the phylum Annelida. They are closely related to the Oligochaeta, oligochaetes, which include the earthworm, and like them have soft, muscular segmented bodies that can lengthen and contract. Both groups are hermaphrodites and have a clitellum, but leeches typically differ from the oligochaetes in having suckers at both ends and in having ring markings that do not correspond with their internal segmentation. The body is muscular and relatively solid, and the coelom, the spacious body cavity found in other annelids, is reduced to small channels. The majority of leeches live in freshwater habitats, while some species can be found in terrestrial or marine environments. The best-known species, such as the medicinal leech, ''Hirudo medicinalis'', are hematophagous, attaching themselves to a host with a sucker and feeding on blood, having first secr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hirudinidae
Hirudinidae is a family of leeches belonging to the order Arhynchobdellida. Genera The ''Interim Register of Marine and Non-marine Genera'' taxon details: Hirudinidae (retrieved 28 August 2021) lists: # '''' Linnaeus, 1758 # '' Limnatis'' Moquin-Tandon, 1827 # '' Limnobdella'' Blanchard, 1893 # '' Ornithobdella'' Benham, 1909 # '' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Moquin-Tandon
Christian Horace Benedict Alfred Moquin-Tandon (7 May 1804 – 15 April 1863) was a French naturalist and doctor. Moquin-Tandon was professor of zoology at Marseille from 1829 until 1833, when he was appointed professor of botany and director of the botanical gardens at Toulouse. In 1850, he was sent by the French government to Corsica to study the island's flora. In 1853, he moved to Paris, later becoming director of the Jardin des Plantes and the Académie des Sciences. His books included ''L'Histoire Naturelle des Iles Canaries'' (1835–44), co-authored with Philip Barker Webb and Sabin Berthelot. One of his specialities was the family Amaranthaceae (The Amaranth family). Several genera of plants have been named in his honour, including in 1838, DC. published ''Moquinia'', a genus of flowering plants from Brazil, in the ''Moquinia'' tribe within the sunflower family. Then in 1954, Simone Balle published '' Moquiniella'' a genus of flowering plants from Africa, belonging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anna J
Anna may refer to: People Surname and given name * Anna (name) Mononym * Anna the Prophetess, in the Gospel of Luke * Anna (wife of Artabasdos) (fl. 715–773) * Anna (daughter of Boris I) (9th–10th century) * Anna (Anisia) (fl. 1218 to 1221) * Anna of Poland, Countess of Celje (1366–1425) * Anna of Cilli (1386–1416) * Anna, Grand Duchess of Lithuania (died 1418) * Anne of Austria, Landgravine of Thuringia (1432–1462) * Anna of Nassau-Dillenburg (died 1514) * Anna, Duchess of Prussia (1576–1625) * Anna of Russia (1693–1740) * Anna, Lady Miller (1741–1781) * Anna Russell, Duchess of Bedford (1783–1857) * Anna, Lady Barlow (1873–1965) * Anna (feral child) (1932–1942) * Anna (singer) (born 1987) Places Australia * Hundred of Anna, a cadastral district in South Australia Iran * Anna, Fars, a village in Fars Province * Anna, Kohgiluyeh and Boyer-Ahmad, a village in Kohgiluyeh and Boyer-Ahmad Province Russia * Anna, Voronezh Oblast, an urban locality in Voro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sucker (zoology)
A sucker in zoology refers to a specialised attachment organ of an animal. It acts as an adhesion device in parasitic worms, several flatworms, cephalopods, certain fishes, amphibians, and bats. It is a muscular structure for suction on a host or substrate. In parasitic annelids, flatworms and roundworms, suckers are the organs of attachment to the host tissues. In tapeworms and flukes, they are a parasitic adaptation for attachment on the internal tissues of the host, such as intestines and blood vessels. In roundworms and flatworms they serve as attachment between individuals particularly during mating. In annelids, a sucker can be both a functional mouth and a locomotory organ. The structure and number of suckers are often used as basic taxonomic diagnosis between different species, since they are unique in each species. In tapeworms there are two distinct classes of suckers, namely "bothridia" for true suckers, and " bothria" for false suckers. In digeneal flukes there ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
