|
Water Snake (other)
The term "water snakes" is sometimes used as a descriptive term for any snakes that spend a significant time in or near aquatic environments, especially freshwater habitats, such as any species belonging to the family Acrochordidae. They should not be confused with sea snakes, which live primarily or entirely in marine environments. Examples of water snakes include: *Family Boidae ** Green anaconda - Water boa *Family Colubridae ** '' Afronatrix'', a monotypic genus with the sole representative, the African brown water snake, ''Afronatrix anoscopus'' ** '' Hydrops (snake)'' ** '' Hydromorphus'' ** '' Hydrodynastes'' species, including: ***'' Hydrodynastes gigas'' – false water snake or Brazilian smooth snake ** '' Natrix natrix'' ** '' Natrix tessellata'' ** ''Nerodia'' species ** ''Opisthotropis'' species ** '' Ptychophis'', a monotypic genus with the sole representative, the fanged water snake, ''Ptychophis flavovirgatus'' ** '' Sinonatrix'' species, including: *** '' Sinonatrix ... [...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] |
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] |
Homalopsidae
The Homalopsidae are a family of snakes which contains about 30 genus, genera and more than 50 species. They are commonly known as Indo-Australian water snakes, mudsnakes, or bockadams. They are also known as (lit. "water snake") in Indonesian. They are typically stout-bodied water snakes, and all are mildly venomous. Two monotypic genera are notable for their unusual morphology: ''Erpeton'' possesses a pair of short, fleshy appendages protruding from the front of the snout, and ''Bitia'' has uniquely enlarged snake skull, palatine teeth. ''Cerberus (snake), Cerberus'' species have been noted to use sidewinding to cross slick Mudflat, mud flats during low tide. ''Fordonia'' and ''Gerarda (snake), Gerarda'' are the only snakes known to tear their prey apart before eating it, pulling soft-shelled crabs through their coils to rip them apart prior to ingestion. Genera * ''Bitia'' * ''Brachyorrhos'' * ''Calamophis'' * ''Cantoria (snake), Cantoria'' * ''Cerberus (snake), Cerber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liophis Reginae
The royal ground snake (''Erythrolamprus reginae'') is a species of snake in the Family (biology), family Colubridae. The species is Endemism, endemic to northern South America. Classification ''Erythrolamprus reginae'' belongs to the genus ''Erythrolamprus'', which contains over 50 species. The genus ''Erythrolamprus'' belongs to the subfamily Dipsadinae, which is sometimes referred to as the family Dipsadidae. Recent phylogenetic analysis of Morphology (biology), morphological and molecular DNA evidence has shown that ''Erythrolamprus reginae'' is now likely paraphyletic. ''Erythrolamprus zweifeli'' was previously considered to be a subspecies of ''Erythrolamprus reginae'' and called ''Erythrolamprus reginae zweifeli''. However, based on notable differences in coloration and scale counts, it is now considered to be a separate species. ''Erythrolamprus pseudoreginae'' of Tobago, named in 2019, was also previously considered to be part of ''Erythrolamprus reginae'', but is now s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liophis Cobellus
''Erythrolamprus cobella'', commonly known as the mangrove snake, is a species of small semi-aquatic snake, which is endemic to South America. Classification ''Erythrolamprus cobella'' belongs to the genus ''Erythrolamprus'', which contains over 50 species. The genus ''Erythrolamprus'' belongs to the subfamily Dipsadinae, which is sometimes referred to as the family Dipsadidae. The relationships of ''Erythrolamprus'' species located in northern South America (Venezuela) can be shown in the cladogram below, based on molecular DNA analysis: Description Adults may attain a total length of , which includes a tail long. Boulenger, G.A. 1894. ''Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ.'' Trustees of the British Museum (Natural History). (Taylor and Francis, Printers.) London. xi + 382 pp. + Plates I.- XX. (''Rhadinæa cobella'', pp. 166-167.) Dorsally, it is black or dark brown with white crossb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liophis
''Liophis'' is a former genus of New World colubrid snakes. They have a wide range of nondescript and local names, among these "water snakes", "''mapepires''", "corals" or "racers". Taxonomy and systematics The status of the genus ''Liophis'' on the mainland of South America is highly uncertain, and some authorities assign some species to the genera '' Dromicus, Erythrolamprus ''Erythrolamprus'' is a genus of colubrid snakes native to Central America, the Caribbean, and South America. They include the false coral snakes, which appear to be coral snake mimics. Classification The genus ''Erythrolamprus'' belongs to ..., Leimadophis, Lygophis'', and '' Philodryas''. Others consider ''Dromicus'' and ''Leimadophis'' to be synonyms of ''Liophis''. Freiberg M (1982). ''Snakes of South America''. Hong Kong: T.F.H. Publications. 189 pp. . ("Note" on pp. 94-95). References Further reading * Wagler J (1830). ''Natürliches System der Amphibien, mit vorangehender Classificatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicops Angulatus
The brown-banded water snake (''Helicops angulatus'') is a species of aquatic snake found in tropical South America and Trinidad and Tobago. It is also known as the water mapepire. Description The brown-banded water snake grows to a maximum total length (including tail) of 78 cm (31 inches). Dorsally, it is olive or gray-brown, with dark brown, black-edged crossbands, which narrow at the sides, and are usually confluent with the black crossbands of the belly. There is a large dark rhomboid on the nape. Ventrally, it is yellowish (in alcohol) with black crossbands or black spots. The dorsal scales are strongly keeled, even on the occiput and nape, and are arranged in 19 rows. Ventrals are 102–130 in number, the anal scale is divided, and the 61-94 subcaudals are paired and keeled. Habitat and diet ''H. angulatus'' lives in fresh and brackish water, where it feeds on fish (such as freshwater eels) and possibly also frogs and their eggs, tadpoles, lizards, earthworms, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helicops (snake)
''Helicops'' is a genus of snakes of the family Colubridae. The genus is endemic to South America. Species The following 20 species are recognized as being valid.. *'' Helicops acangussu'' *''Helicops angulatus'' – brown-banded water snake *'' Helicops apiaka'' *'' Helicops boitata'' *'' Helicops carinicaudus'' – Wied's keelback *'' Helicops danieli'' – Daniel's keelback *''Helicops gomesi'' – São Paulo keelback *''Helicops hagmanni'' – Hagmann's keelback *''Helicops infrataeniatus'' *''Helicops leopardinus'' – leopard keelback *''Helicops modestus'' – olive keelback *'' Helicops nentur'' *'' Helicops pastazae'' – Shreve's keelback *'' Helicops petersi'' – spiral keelback *'' Helicops phantasma'' *'' Helicops polylepis'' – Norman's keelback *'' Helicops scalaris'' – ladder keelback *'' Helicops tapajonicus'' *'' Helicops trivittatus'' – equatorial keelback *'' Helicops yacu'' – Peru keelback ''Nota bene'': A binomial authority ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fowlea Piscator
The checkered keelback (''Fowlea piscator''), also known commonly as the Asiatic water snake, is a common species in the subfamily Natricinae of the family Colubridae. The species is endemic to Asia. It is non-venomous. Description The eye of ''F. piscator'' is rather small and shorter than its distance from the nostril in the adult. Its rostral scale is visible from above. The internasal scales are much narrowed anteriorly and subtriangular, with the anterior angle truncated and as long as the prefrontal scales. The frontal scale is longer than its distance from the end of the snout, and as long as the parietals or a little shorter. The loreal is nearly as long as it is deep. There are one preocular and three (rarely four) post-oculars. Its temporals are 2+2 or 2+3. There are normally nine upper labials, with the fourth and fifth entering the eye; and five lower labials in contact with the anterior chin-shields, which are shorter than the posterior. The dorsal scales are arran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fowlea
''Fowlea'' is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Species The following species are recognized as being valid.. The Reptile Database. www.reptile-database.org. *'' Fowlea asperrima'' – Boulenger's keelback *'' Fowlea flavipunctata'' – yellow-spotted keelback *'' Fowlea melanzosta'' – Javan keelback water snake *''Fowlea piscator'' – checkered keelback *'' Fowlea punctulata'' – Spotted keelback water snake *'' Fowlea sanctijohannis'' – St. John's keelback *'' Fowlea schnurrenbergeri'' – bar-necked keelback *'' Fowlea unicolor'' – Tikiri keelback *'' Fowlea yunnanensis'' – Yunnan olive keelback Some snakes of this genus, such as Boulenger's keelback and the checkered keelback, were moved from the genus '' Xenochrophis''. ''Nota bene'': A binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimerodytes
''Trimerodytes'' is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to East Asia and Southeast Asia. Species The genus ''Trimerodytes'' contains 7 species which are recognized as being valid. *'' Trimerodytes aequifasciatus'' – Asiatic annulate keelback, Asiatic water snake *'' Trimerodytes annularis'' – red-bellied annulate keelback, ringed water snake *'' Trimerodytes balteatus'' – Hainan mountain keelback *'' Trimerodytes percarinatus'' – eastern water snake, olive keelback, olive annulate keelback, Chinese keelback water snake *'' Trimerodytes praemaxillaris'' – Angel's mountain keelback, brown stream snake *'' Trimerodytes yapingi'' – Jingdong water snake *'' Trimerodytes yunnanensis'' – Yunnan water snake, Yunnan annulate keelback ''Nota bene'': A binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of livi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinonatrix Percarinatus
''Trimerodytes percarinatus'', commonly known as the eastern water snake, olive keelback, olive annulate keelback or Chinese keelback water snake, is a species of snake in the subfamily Natricinae. Taxonomy The type locality for ''T. percarinatus'' is Guadun (formerly spelled as Kuatun), Wuyishan City (former Chongan County) in NW Fujian, China. Subspecies The subspecies ''Trimerodytes percarinatus suriki'' is endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ... to Taiwan where it occurs in the whole country. Description ''T. percarinatus'' is a defensive snake that bites readily when caught, but it is not venomous. It is a medium-sized snake, typically attaining a total length (including tail) of , but may grow up to . An adult female usually lays 4 to 13 eggs, but may la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
