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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. Five of the species have recognized subspecies. 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 (including tail). 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 As the common name water snakes implies, species in the genus ''Nerodia'' are largely aquatic. They spend the vast majority of their time in or very ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Rhombifer2
''Nerodia'' is a genus of nonvenomous Colubridae, colubrid snakes Common name, commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species, all native to North America. Five of the species have recognized subspecies. 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 (including tail). 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 thereof with markings being brown, or black. Yellow or cream-colored accenting is common. Behavior As the common name water snakes implies, species in the genus ''Ner ... [...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 most commonly found in the Midwest, Southeastern United States. Geographic range ''N. fasciata'' is natively found from southern Illinois, south to Louisiana, and east to North Carolina and Florida. Introduced populations exist in Texas and California; other sources include eastern Texas in its natural range. 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 ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Erythrogaster
''Nerodia erythrogaster'', also known as the plain-bellied water snake or plainbelly water snake, is a common species of semi-aquatic, non-venomous colubrid snake endemic to the United States. Description The plain-bellied water snake is a large, thick-bodied, mostly patternless snake, with a generally beige underside. Some snakes display a thin, white line between the pale belly and their darker top scales. Subspecies can range from dark brown, gray, and olive-green to greenish-gray or blackish in color. Some lighter-colored individuals have dark dorsal patterns. Plain-bellied water snakes can be distinguished from other water snakes by their “plain”, patternless undersides, which vary in color from light reddish hues to beige; this is where they get the common name “plain-bellied”, as they typically have no notable markings on their bellies. There used to be recognized subspecies of the plain-bellied water snake, although scientists often had a hard time differentiating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Clarkii
''Nerodia clarkii'', commonly known as the salt marsh snake or the saltmarsh watersnake, is a species of semi-aquatic, nonvenomous, colubrid snake found in the southeastern United States. Their range extends along the tidal salt marshes of the Gulf of Mexico and the Atlantic Coast from Texas to Florida, with an additional population in northern Cuba. The three subspecies of this snake are primarily distinguished by color pattern and geographic range. Salt marsh snakes are the only U.S. snake species indigenous to saltwater habitats, being reported as common on coastal barrier islands without freshwater (Allen 1932). Etymology The specific name, ''clarkii'', is in honor of American surveyor and naturalist John Henry Clark (1830–1885). Description and subspecies General description Salt marsh snakes grow to a total length (including tail) of . They are also highly variable in both pattern and coloration. Found most commonly in coastal salt marshes, this snake inhabits brackish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Rhombifer
''Nerodia rhombifer'', commonly known as the diamondback water snake, is a species of nonvenomous Natricinae, natricine Colubridae, colubrid Endemism, 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 (herpetologist), 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 midbod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Cyclopion
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 ring of small pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerodia Clarkii Clarkii
''Nerodia clarkii clarkii'', the Gulf salt marsh snake, is a subspecies of '' N. clarkii'' that is indigenous to the south-eastern United States. It is a nonvenomous, colubrid snake that inhabits coastal salt marshes and brackish estuaries along the coast of the Gulf of Mexico from Florida to Texas. Description The Gulf salt marsh snake is a moderately stout aquatic snake. Adult specimens attain an average total length (including tail) of , with the record maximum total length at . The color pattern in this subspecies is variable, but adults tend to have a dorsum that ranges from dark gray to reddish-brown with four yellowish longitudinal stripes down the body, two on each side. The belly is dark gray to reddish-brown with one to three rows of pale spots. Reproduction The Gulf salt marsh snake reaches sexual maturity at three years. Females give birth to 2-44 live young that range from in total length. Their typical lifespan is up to 20 years. Diet ''N. c. clarkii'' is prim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake
Snakes are elongated limbless reptiles of the suborder Serpentes (). Cladistically squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales much like other members of the group. Many species of snakes have skulls with several more joints than their lizard ancestors and relatives, 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 only have one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have independently evolved elongate bodies without limbs or with greatly reduced limbs at least twenty-five times 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, althoug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colubridae
Colubridae (, commonly known as colubrids , from , 'snake') is a family of snakes. With 249 genera, it is the largest snake family. The earliest fossil species of the family date back to the Late Eocene epoch, with earlier origins suspected. Colubrid snakes are found on every continent except Antarctica. Description Colubrids are a very diverse group of snakes. They can exhibit many different body styles, body sizes, colors, and patterns. They can also live in many different types of habitats including aquatic, terrestrial, semi-arboreal, arboreal, desert, mountainous forests, semi-fossorial, and brackish waters. A primarily shy and harmless group of snakes, the vast majority of colubrids are not venomous, nor do most colubrids produce venom that is medically significant to mammals. However, the bites of some can escalate quickly to emergency situations. Furthermore, within the Colubridae, the South African boomslang and twig snakes, as well as the Asian keelback snakes (' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Saltmarsh Watersnake (Nerodia C
A gulf is a large inlet from an ocean or their seas into a landmass, larger and typically (though not always) with a narrower opening than a bay. The term was used traditionally for large, highly indented navigable bodies of salt water that are enclosed by the coastline. Many gulfs are major shipping areas, such as the Persian Gulf, Gulf of Mexico, Gulf of Finland, and Gulf of Aden The Gulf of Aden (; ) is a deepwater gulf of the Indian Ocean between Yemen to the north, the Arabian Sea to the east, Djibouti to the west, and the Guardafui Channel, the Socotra Archipelago, Puntland in Somalia and Somaliland to the south. .... See also * References External links * {{Geography-stub Bodies of water Coastal and oceanic landforms Coastal geography Oceanographical terminology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/ricochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include Mouse, mice, rats, squirrels, prairie dogs, porcupines, beavers, Cavia, guinea pigs, and hamsters. Once included wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André Marie Constant Duméril
André Marie Constant Duméril (1 January 1774 – 14 August 1860) was a French zoologist. He was professor of anatomy at the National Museum of Natural History (France), Muséum national d'histoire naturelle from 1801 to 1812, when he became professor of herpetology and ichthyology. His son Auguste Duméril was also a zoologist, and the author citation (zoology), author citation Duméril is used for both André and his son. Life André Marie Constant Duméril was born on 1 January 1774 in Amiens and died on 14 August 1860 in Paris. He became a doctor at a young age, obtaining, at 19 years, the ''prévot'' of anatomy at the medical school of Rouen. In 1800, he left for Paris and collaborated in the drafting of the comparative anatomy lessons of Georges Cuvier. He replaced Cuvier at the Central School of the Panthéon, Paris, Panthéon and had, as his colleague, Alexandre Brongniart. In 1801, he gave courses to the medical school of Paris. Under the Bourbon Restoration in Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
