|
Xenocalamus Bicolor
''Xenocalamus bicolor'', also known Common name, commonly as the bicoloured quill-snouted snake and the slender quill-snouted snake, is a species of mildly venomous Opisthoglyphous, rear-fanged snake in the Family (biology), family Atractaspididae. The species is Endemism, endemic to Africa. Four subspecies are recognized as being valid. Geographic range ''X. bicolor'' is found in Angola, Botswana, Democratic Republic of the Congo, Mozambique, Namibia, Republic of South Africa, and Zimbabwe. Habitat The preferred natural habitat of ''X. bicolor'' is savanna, at altitudes of . Description ''X. bicolor'' exhibits the following characters: Black dorsally. White ventrally including the upper lip and the first two rows of dorsal scales on each side. Total length ; tail . Dorsal scales smooth, without apical pits, arranged in 17 rows. Ventrals 218; anal plate divided; subcaudals 24, also divided. Portion of rostral visible from above nearly half as long as the frontal. Frontal ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenocalamus Bicolor Machadoi
:''Common name: quill-snouted snakes.'' ''Xenocalamus'' is a genus of Opisthoglyphous, rear-fanged mildly venomous snakes in the Family (biology), family Atractaspidinae, Atractaspididae. The genus is Endemism, endemic to Africa. Five species are recognized as being valid. Description (diagnosis) of genus Snakes of the genus ''Xenocalamus'' exhibit the following characters: Maxillary very short, with five teeth gradually increasing in size and followed, after an interspace, by two large grooved fangs situated below the eye. Anterior mandibular teeth slightly larger than the posterior ones. Palate toothless. Head small, not distinct from neck. Snout pointed, very prominent, very flattened. Rostral very large with obtuse horizontal edge, flat below. Eye minute, with round pupil. Nostril between two nasals, the posterior nasal very large. No loreal. Prefrontals absent (fused with the frontal). No anterior temporal. Body cylindrical; tail very short, obtuse. Dorsal scales smooth, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenocalamus Bicolor Lineatus
:''Common name: quill-snouted snakes.'' ''Xenocalamus'' is a genus of rear-fanged mildly venomous snakes in the family Atractaspididae. The genus is endemic to Africa. Five species are recognized as being valid. Description (diagnosis) of genus Snakes of the genus ''Xenocalamus'' exhibit the following characters: Maxillary very short, with five teeth gradually increasing in size and followed, after an interspace, by two large grooved fangs situated below the eye. Anterior mandibular teeth slightly larger than the posterior ones. Palate toothless. Head small, not distinct from neck. Snout pointed, very prominent, very flattened. Rostral very large with obtuse horizontal edge, flat below. Eye minute, with round pupil. Nostril between two nasals, the posterior nasal very large. No loreal. Prefrontals absent (fused with the frontal). No anterior temporal. Body cylindrical; tail very short, obtuse. Dorsal scales smooth, without apical pits, arranged in 17 rows. Ventrals rounded; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenocalamus Bicolor Bicolor
:''Common name: quill-snouted snakes.'' ''Xenocalamus'' is a genus of rear-fanged mildly venomous snakes in the family Atractaspididae. The genus is endemic to Africa. Five species are recognized as being valid. Description (diagnosis) of genus Snakes of the genus ''Xenocalamus'' exhibit the following characters: Maxillary very short, with five teeth gradually increasing in size and followed, after an interspace, by two large grooved fangs situated below the eye. Anterior mandibular teeth slightly larger than the posterior ones. Palate toothless. Head small, not distinct from neck. Snout pointed, very prominent, very flattened. Rostral very large with obtuse horizontal edge, flat below. Eye minute, with round pupil. Nostril between two nasals, the posterior nasal very large. No loreal. Prefrontals absent (fused with the frontal). No anterior temporal. Body cylindrical; tail very short, obtuse. Dorsal scales smooth, without apical pits, arranged in 17 rows. Ventrals rounded; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenocalamus Bicolor Australis
:''Common name: quill-snouted snakes.'' ''Xenocalamus'' is a genus of rear-fanged mildly venomous snakes in the family Atractaspididae. The genus is endemic to Africa. Five species are recognized as being valid. Description (diagnosis) of genus Snakes of the genus ''Xenocalamus'' exhibit the following characters: Maxillary very short, with five teeth gradually increasing in size and followed, after an interspace, by two large grooved fangs situated below the eye. Anterior mandibular teeth slightly larger than the posterior ones. Palate toothless. Head small, not distinct from neck. Snout pointed, very prominent, very flattened. Rostral very large with obtuse horizontal edge, flat below. Eye minute, with round pupil. Nostril between two nasals, the posterior nasal very large. No loreal. Prefrontals absent (fused with the frontal). No anterior temporal. Body cylindrical; tail very short, obtuse. Dorsal scales smooth, without apical pits, arranged in 17 rows. Ventrals rounded; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mozambique
Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Eswatini and South Africa to the southwest. The sovereign state is separated from the Comoros, Mayotte and Madagascar by the Mozambique Channel to the east. The capital and largest city is Maputo. Notably Northern Mozambique lies within the monsoon trade winds of the Indian Ocean and is frequentely affected by disruptive weather. Between the 7th and 11th centuries, a series of Swahili port towns developed on that area, which contributed to the development of a distinct Swahili culture and language. In the late medieval period, these towns were frequented by traders from Somalia, Ethiopia, Egypt, Arabia, Persia, and India. The voyage of Vasco da Gama in 1498 marked the arrival of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean Roux
Jean Roux (March 1876, Geneva – 1 December 1939) was a Swiss herpetologist. He studied at the University of Geneva, completing his doctoral thesis in 1899. His early research involved studies of protozoa, and following post-doctoral work in Berlin, he became a curator at the natural history museum in Basel. Here, he performed analysis of herpetological specimens collected by Fritz Müller, his predecessor at Basel.SSARHerps (biography) In 1907-08, with , he performed scientific research in the Aru and , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vivian Frederick Maynard FitzSimons
Vivian Frederick Maynard FitzSimons, born in Pietermaritzburg, was a notable herpetologist in South Africa. Also, he contributed to the collection of spermatophyte samples for the National Herbarium which has become part of the South African National Biodiversity Institute at the Pretoria National Botanical Garden. In 1937, together with Anna Amelia Obermeyer, he collected some of the earliest plant specimens from the Eastern Highlands of Rhodesia (now Zimbabwe). Later, as director of the Transvaal Museum, he together with Charles Koch helped to establish the Namib Desert Research Institute in Gobabeb Family Vivian FitzSimons came from a family of naturalists. His father, Frederick William FitzSimons, and his mother Patricia Henrietta (née Russell), both immigrated to South Africa from Ireland. His brother was Desmond Charles Fitzsimons, who in 1939 founded the Fitzsimons Snake Park (Durban) and was a leading distributor of snake antivenoms in South Africa. Vivian FitzSimons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nominotypical Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nota Bene
(, or ; plural form ) is a Latin phrase meaning "note well". It is often abbreviated as NB, n.b., or with the ligature and first appeared in English writing . In Modern English, it is used, particularly in legal papers, to draw the attention of the reader to a certain (side) aspect or detail of the subject being addressed. While ''NB'' is also often used in academic writing, ''note'' is a common substitute. The markings used to draw readers' attention in medieval manuscripts are also called marks. The common medieval markings do not, however, include the abbreviation ''NB''. The usual medieval equivalents are anagrams from the four letters in the word , the abbreviation DM from ("worth remembering"), or a symbol of a little hand (☞), called a manicule or index, with the index finger pointing towards the beginning of the significant passage.Raymond Clemens and Timothy Graham, Introduction to Manuscript Studies (Ithaca: Cornell University Press, 2007), p. 44. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. According to '' Britannica'', there exists four savanna forms; ''savanna woodland'' where trees and shrubs form a light canopy, ''tree savanna'' with scattered trees and shrubs, ''shrub savanna'' with distributed shrubs, and ''grass savanna'' where trees and shrubs are mostly nonexistent.Smith, Jeremy M.B.. "savanna". Encyclopedia Britannica, 5 Sep. 2016, https://www.britannica.com/science/savanna/Environment. Accessed 17 September 2022. Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.JPG "Click for more on -> Habitat")