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Nerodia
''Nerodia'' is a genus of nonvenomous colubrid snakes commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species, all native to North America. Description ''Nerodia'' species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ... vary greatly, but all are relatively heavy-bodied snakes, sometimes growing to 1.2 m (4 feet) or longer in total length. They have flattened heads, with small eyes that have round pupils, and keeled dorsal scales. Species like ''Nerodia fasciata, N. fasciata'' display distinct banding, whereas other species, like ''Nerodia erythrogaster, N. erythrogaster'', have blotching, and those like ''Nerodia rhombifer, N. rhombifer'' have diamond-shaped patterning. Most species are brown or olive green, or some combination ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Fasciata
The banded water snake or southern water snake (''Nerodia fasciata'') is a species of mostly aquatic, nonvenomous, colubrid snakes endemic to the Midwest and Southeastern United States. Geographic range ''N. fasciata'' is natively found from Indiana, south to Louisiana, and east to Florida. In 1992, its congener ''Nerodia sipedon'' (northern or common water snake) and it were found in three sites in California by the US Fish and Wildlife Service (USFWS). In 2009, more than 300 banded water snakes were caught in suburbs of Los Angeles by the Nerodia Working Group of USFWS. Then in May 2016, the species was found in the Colorado River basin near Yuma, Arizona. Further trapping did indeed catch large numbers of them, indicating that a thriving invasive population exists in that area. Description Adults of the banded water snake measure from in total length, with a record size (in the Florida subspecies) of in total length. In one study, the average body mass of adult banded w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Erythrogaster Neglecta
The copperbelly water snake or copperbelly (''Nerodia erythrogaster neglecta'') is a subspecies of nonvenomous colubrid snake endemic to the Central United States. Description Copperbelly water snakes have a solid dark (usually black but bluish and brown) back with a bright orange-red belly. They grow to a total length of . They are not venomous. The longest total length on record is for a specimen from the northern edge of their range. Newborn copperbellies are in total length, and in a year are about in total length. They are patterned with two-toned, reddish-brown, saddle-like crossbanding with reddish-orange chins and lips. Their bellies are light orange. They are cryptic, camouflaged, secretive and hardly ever seen. Habitat Copperbellies live in lowland swamps or other warm, quiet waters. Lowland and some upland woods are almost always part of the swamp habitat. Recent studies have shown that at least of more or less continuous swamp-forest habitat is necessar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Rhombifer
''Nerodia rhombifer'', commonly known as the diamondback water snake, is a species of nonvenomous natricine colubrid endemic to the central United States and northern Mexico. There are three recognized subspecies of ''N. rhombifer'', including the nominotypical subspecies. Taxonomy and systematics The species was first described as ''Tropidonotus rhombifer'' by Edward Hallowell in 1852. Description The diamondback water snake is predominantly brown, dark brown, or dark olive green in color, with a black net-like pattern along the back, with each spot being vaguely diamond-shaped. Dark vertical bars and lighter coloring are often present down the sides of the snake. In typical counter-colored fashion, the underside is generally a yellow or lighter brown color, often with black blotching. The dorsal scales are heavily keeled, giving the snake a rough texture. The dorsal scales are arranged in 25 or 27 rows at midbody. There are usually 3 postoculars. Adult males ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Clarkii
''Nerodia clarkii'', commonly known as the salt marsh snake, is a species of semiaquatic, nonvenomous, colubrid snake found in the southeastern United States, in the brackish salt marshes along the Gulf of Mexico from Florida to Texas, with a population in northern Cuba. Etymology The specific name, ''clarkii'', is in honor of American surveyor and naturalist John Henry Clark (1830-1885). Description Salt marsh snakes grow to a total length (including tail) of to , and are highly variable in pattern and coloration. Populations of the Gulf salt marsh snake ('' N. c. clarkii'') from the vicinity of Corpus Christi, Texas, to the Gulf Hammock region of Florida are gray, tan or yellow with four brown to black longitudinal stripes. Populations in Florida from Tampa Bay south to Miami and northward along the Atlantic coast to the vicinity of Cape Canaveral are referred to as the mangrove salt marsh snake (''N. c. compressicauda''). This subspecies exhibits many colors and pat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Rhombifer2
''Nerodia'' is a genus of nonvenomous colubrid snakes commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species, all native to North America. Description ''Nerodia'' species vary greatly, but all are relatively heavy-bodied snakes, sometimes growing to 1.2 m (4 feet) or longer in total length. They have flattened heads, with small eyes that have round pupils, and keeled dorsal scales. Species like '' N. fasciata'' display distinct banding, whereas other species, like '' N. erythrogaster'', have blotching, and those like '' N. rhombifer'' have diamond-shaped patterning. Most species are brown or olive green, or some combination thereof with markings being brown, or black. Yellow or cream-colored accenting is common. Behavior Water snakes, as their name implies, are largely aquatic. They spend the vast majority of their time in or very near permanent sources of water. Often, they can be found basking on tree branches that overhan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake
Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads ( cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Frédéric Girard
Charles Frédéric Girard (8 March 1822 – 29 January 1895) was a French biologist specializing in ichthyology and herpetology. Born in Mulhouse, France, he studied at the College of Neuchâtel, Switzerland, as a student of Louis Agassiz. In 1847, he accompanied Agassiz as his assistant to Harvard University. Three years later, Spencer Fullerton Baird called him to the Smithsonian Institution to work on its growing collection of North American reptiles, amphibians and fishes. He worked at the museum for the next ten years and published numerous papers, many in collaboration with Baird. In 1854, he was naturalized as a U.S. citizen. Besides his work at the Smithsonian, he managed to earn an M.D. from Georgetown University in Washington, D.C. in 1856. In 1859 he returned to France and was awarded the Cuvier Prize by the Institute of France for his work on the North American reptiles and fishes two years later. When the American Civil War broke out, he joined the Confederates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roger Conant (herpetologist)
Roger Conant (May 6, 1909 – December 19, 2003) was an American herpetologist, author, educator and conservationist. He was Director Emeritus of the Philadelphia Zoo and adjunct professor at the University of New Mexico. He wrote one of the first comprehensive field guides for North American reptiles in 1958 entitled: ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America'', in the Peterson Field Guide series. Biography Born in Mamaroneck, New York, Conant lost his father when he was young. When he was a teenager he took a job at a local zoo to help his mother make ends meet, which, along with participating in the Boy Scouts of America, began his lifelong passion for reptiles. He was the first Eagle Scout in Monmouth County Council, New Jersey in 1924. He moved to Toledo, Ohio in 1929 and worked as Curator of Reptiles, and later General Curator at the Toledo Zoo from 1929 to 1935. In 1935 he returned to Philadelphia and became the Curator of Reptil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Reinhold Forster
Johann Reinhold Forster (22 October 1729 – 9 December 1798) was a German Reformed (Calvinist) pastor and naturalist of partially Scottish descent who made contributions to the early ornithology of Europe and North America. He is best known as the naturalist on James Cook's second Pacific voyage, where he was accompanied by his son Georg Forster. These expeditions promoted the career of Johann Reinhold Forster and the findings became the bedrock of colonial professionalism and helped set the stage for the future development of anthropology and ethnology. They also laid the framework for general concern about the impact that alteration of the physical environment for European economic expansion would have on exotic societies. Biography Forster's family originated in the Lords Forrester in Scotland from where his great-grandfather had emigrated after losing most of his property during the rule of Oliver Cromwell along with many other Scots. Forster himself was born in the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Water Snake
The green water snake (''Nerodia cyclopion'') is a common species of nonvenomous natricine snake endemic to the southeastern United States. Geographic range ''N. cyclopion'' is distributed from the Florida panhandle westward to Louisiana, and northward through the Mississippi Valley into southern Illinois. Stejneger, L., and T. Barbour (1917). ''A Check List of North American Amphibians and Reptiles''. Cambridge, Massachusetts: Harvard University Press. 125 pp. (''Natrix cyclopion'', pp. 94-95). More precisely, it is found in southwestern Alabama, southeastern Arkansas, northwestern Florida, southern Illinois, southwestern Indiana, western Kentucky, Louisiana, southern Mississippi, southeastern Missouri, western Tennessee, and southeastern Texas. The type locality is New Orleans, Louisiana. Description ''N. cyclopion'' differs from most other species of North American water snakes by having one or more small scales under the eye, giving the appearance of a ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Duméril
Auguste Henri André Duméril (30 November 1812 – 12 November 1870) was a French zoologist. His father, André Marie Constant Duméril (1774-1860), was also a zoologist. In 1869 he was elected as a member of the Académie des sciences. Duméril studied at the University of Paris, and in 1844 became an associate professor of comparative physiology at the university. From 1857, he was a professor of herpetology and ichthyology at the Muséum National d'Histoire Naturelle in Paris. In 1851, with his father, he published ''Catalogue méthodique de la collection des Reptiles''. With zoologist Marie Firmin Bocourt (1819–1904), he collaborated on a project called ''Mission scientifique au Mexique et dans l'Amérique Centrale'', a publication that was the result of Bocourt's scientific expedition to Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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