Iguanognathus
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Iguanognathus
The spatula-toothed snake (''Iguanognathus werneri'') is a species of snake in the family Colubridae. The species is endemic to Indonesia. Etymology The specific name, ''werneri'', is in honor of Austrian herpetologist Franz Werner. Taxonomy The species ''I. werneri'' is monotypic within the genus ''Iguanognathus''. Geographic range ''I. werneri'' is known only from the holotype, which was collected in Sumatra, Indonesia. Habitat The natural habitat of ''I. werneri'' is unknown. Description All the teeth of ''I. werneri'' (mandibular, maxillary, and palatal) have spatulate crowns, which are ribbed along the outer side. The holotype, which is a female, has a total length of , including a tail long. Reproduction ''I. werneri'' is oviparous.. www.reptile-database.org. References Further reading * Boulenger GA (1898). "Description of a new Genus of Aglyphous Colubrine Snakes from Sumatra". ''Annals and Magazine of Natural History, Seventh Series'' 2: 73–74. (''Iguanognathus' ...
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Colubridae
Colubridae (, commonly known as colubrids , from la, coluber, 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest species of the family date back to the Oligocene epoch. Colubrid snakes are found on every continent except Antarctica. Description While most colubrids are not venomous (or have venom that is not known to be harmful to humans) and are mostly harmless, a few groups, such as genus ''Boiga'', can produce medically significant injuries. In addition, the boomslang, the twig snakes, and the Asian genus ''Rhabdophis'' have caused human fatalities. Some colubrids are described as opisthoglyphous (often called "rear-fanged"), meaning they have elongated, grooved teeth located in the back of their upper jaws. It is likely that opisthoglyphous dentition evolved many times in the history of snakes and is an evolutionary precursor to the fangs of vipers and elapids, which are located in the front of the mouth. Classification In the pas ...
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Natricinae
The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae). The subfamily comprises 37 genera. Members include many very common snake species, such as the European grass snakes, and the North American water snakes and garter snakes. Some Old World members of the subfamily are known as keelbacks, because their dorsal scales exhibit strong keeling. Natricine snakes are found in Africa, Asia, Europe, North America, and Central America as far south as Costa Rica. A single species, '' Tropidonophis mairii'', reaches Australia. Although the highest diversity is in North America, the oldest members are in Asia and Africa, suggesting an Old World origin for the group. Most species are semiaquatic and feed on fish and amphibians, although a few are semifossorial or leaf-litter snakes that feed on invertebrates. Most species are harmless to humans, but a few (e.g., ''Thamnophis sirtalis'', '' Thamnophis elegans'') are capable of inflicting bites t ...
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Franz Werner
Franz Josef Maria Werner (15 August 1867 in Vienna – 28 February 1939 in Vienna) was an Austrian zoologist and explorer. Specializing as a herpetologist and entomologist, Werner described numerous species and other taxa of frogs, snakes, insects, and other organisms. His father introduced him at age six to reptiles and amphibians. A brilliant student, he corresponded often with George Albert Boulenger (1858–1937) and Oskar Boettger (1844–1910) who encouraged his studies with these animals. Werner obtained his doctorate in Vienna in 1890 and then after spending a year in Leipzig, began to teach at the Vienna Institute of Zoology. In 1919, he became tenured as a professor, maintaining this title until his retirement in 1933. Although working close to the Vienna Natural History Museum, he could not use their herpetological collections, after the death of its director, Franz Steindachner (1834–1919), who did not like Werner, and had barred him from accessing the collec ...
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George Albert Boulenger
George Albert Boulenger (19 October 1858 – 23 November 1937) was a Belgian-British zoologist who described and gave scientific names to over 2,000 new animal species, chiefly fish, reptiles, and amphibians. Boulenger was also an active botanist during the last 30 years of his life, especially in the study of roses. Life Boulenger was born in Brussels, Belgium, the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart, from Valenciennes. He graduated in 1876 from the Free University of Brussels with a degree in natural sciences, and worked for a while at the Royal Belgian Institute of Natural Sciences, Brussels, as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the ''Muséum national d'Histoire naturelle'' in Paris and the British Museum in London. In 1880, he was invited to work at the Natural History Museum, then a department of the British Museum, by Dr. Albert C. L. G. Günther a ...
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Patrick David
Patrick may refer to: * Patrick (given name), list of people and fictional characters with this name * Patrick (surname), list of people with this name People * Saint Patrick (c. 385–c. 461), Christian saint *Gilla Pátraic (died 1084), Patrick or Patricius, Bishop of Dublin * Patrick, 1st Earl of Salisbury (c. 1122–1168), Anglo-Norman nobleman * Patrick (footballer, born 1983), Brazilian right-back * Patrick (footballer, born 1985), Brazilian striker *Patrick (footballer, born 1992), Brazilian midfielder * Patrick (footballer, born 1994), Brazilian right-back *Patrick (footballer, born May 1998), Brazilian forward *Patrick (footballer, born November 1998), Brazilian attacking midfielder * Patrick (footballer, born 1999), Brazilian defender * Patrick (footballer, born 2000), Brazilian defender *John Byrne (Scottish playwright) (born 1940), also a painter under the pseudonym Patrick *Don Harris (wrestler) (born 1960), American professional wrestler who uses the ring name Patrick ...
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Reptiles Described In 1898
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated around 31 ...
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Reptiles Of Indonesia
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated around 3 ...
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Alan H
Alan may refer to: People *Alan (surname), an English and Turkish surname *Alan (given name), an English given name **List of people with given name Alan ''Following are people commonly referred to solely by "Alan" or by a homonymous name.'' *Alan (Chinese singer) (born 1987), female Chinese singer of Tibetan ethnicity, active in both China and Japan *Alan (Mexican singer) (born 1973), Mexican singer and actor * Alan (wrestler) (born 1975), a.k.a. Gato Eveready, who wrestles in Asistencia Asesoría y Administración *Alan (footballer, born 1979) (Alan Osório da Costa Silva), Brazilian footballer *Alan (footballer, born 1998) (Alan Cardoso de Andrade), Brazilian footballer *Alan I, King of Brittany (died 907), "the Great" *Alan II, Duke of Brittany (c. 900–952) *Alan III, Duke of Brittany(997–1040) *Alan IV, Duke of Brittany (c. 1063–1119), a.k.a. Alan Fergant ("the Younger" in Breton language) *Alan of Tewkesbury, 12th century abbott *Alan of Lynn (c. 1348–1423), 15th cen ...
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Kate Jackson (author)
Kate Jackson (born 14 February 1972) is a Canadian herpetologist who specializes in the study of venomous snakes in Central Africa. She earned her PhD from Harvard in 2002. In her dissertation she concluded that a venom-delivery system evolved during the Miocene era, approximately 25 million years ago. And from there three separate, more sophisticated, apparatuses developed. Her first trip to the region was in 1997. Jackson took an internship at the Smithsonian Institution and traveled to the Republic of Congo, starting her trip in Brazzaville. She worked in Northern Congo, but she had to cut her research trip short when a scrape on her leg became infected and she had to be evacuated for treatment in Cameroon. Despite the early end, she collected several amphibian and reptile species, seven of which had never been collected in Congo before. She received funding from the Smithsonian to return to the Republic of Congo in 2005 to continue her research. The trip was difficult, due ...
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Nelly De Rooij
Petronella Johanna Nelly de Rooij (30 July 1883 – 10 June 1964) was a Dutch zoologist and herpetologist. Biography De Rooij was born in Weesp, and she studied Medicine in Amsterdam until discrimination against her gender in Dutch law obliged her to continue her studies in Zurich. She studied the cardiovascular system of salamanders of the genus ''Andrias'', and she was awarded her Doctor of Philosophy by the University of Zurich in 1907. With her qualification she was able to return to Amsterdam where she became a curator at the museum of zoology within the University of Amsterdam.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles'' Johns Hopkins University Press. xiii + 296 pp. . ("De Rooij", p.70). In 1922 she was obliged to leave due to administrative reforms, but in this short academic career she was able to publish ''The Reptiles of the Indo-Australian Archipelago''. The book was based on reptile specimens that were sent to the mu ...
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