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Afrixalus Lindholmi
''Afrixalus lindholmi'' is a species of frog in the family Hyperoliidae. It is endemic to Cameroon and only known from the holotype collected in Bibundi, in the coastal area of Mount Cameroon. Its taxonomic validity is in question. Etymology The specific name ''lindholmi'' honours Wassili Adolfovitch Lindholm, a Russian zoologist, herpetologist, and malacologist. Accordingly, common name Lindholm's Banana frog has been coined for this species. Taxonomy and description The holotype is a female measuring in snout–vent length. The tympanum is small but distinct. The specimen resembles a juvenile ''Leptopelis'', but is evidently an adult because it has about one hundred eggs in its ovaries. This number is much higher than is typical for ''Afrixalus'' species, and Amiet (2009) suggests that the placement of this species in ''Afrixalus'' should be considered ''incertae sedis'' only. Some specimens now recognized as ''Afrixalus lacteus'' were allocated to ''Afrixalus lindholmi'' be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lars Gabriel Andersson
Lars Gabriel Andersson (22 February 1868 – 13 February 1951) was a Swedish schoolteacher and herpetologist. He studied at Uppsala University and earned his PhD in 1909. During his long career he taught classes at several schools in and near Stockholm. In 1894–95 and from 1897 to 1902 he worked as an assistant in the vertebrate department at the Naturhistoriska riksmuseet in Stockholm. Taxa With zoologist Einar Lönnberg he described the following herpetological species: * ''Aipysurus tenuis'', 1913 * '' Atractaspis engdahli'', 1913 * ''Eulamprus brachyosoma'', 1915. * '' Eulamprus tympanum'', 1915 * '' Gastrotheca microdiscus'', (Andersson in Lönnberg and Andersson, 1910). * ''Glaphyromorphus mjobergi'', 1915 * ''Strophurus taeniatus'', 1913. On his own, he described: * '' Didynamipus sjostedti'', 1903 Works by Andersson that have been published in English * "Catalogue of Linnean type-specimens of snakes in the Royal Museum in Stockholm", 1899. * "Catalogue of Linnean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by ' (of uncertain family), ' (of uncertain suborder), ' (of uncertain order) and similar terms. Examples *The fossil plant '' Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil '' Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Bocage's longbill, ''Motacilla boc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Lars Gabriel Andersson
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Cameroon
Endemism is the state of a species being found 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 found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Cameroon
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of Africa
The fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical realm. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife. Africa is home to many of the world's most famous fauna in human culture such as lions‚ rhinos‚ cheetahs‚ giraffes‚ antelope, hippos, leopards, zebras‚ and African elephants among many others. Origins and history of African fauna Whereas the earliest traces of life in fossil record of Africa date back to the earliest times, the formation of African fauna as we know it today, began with the splitting up of the Gondwana supercontinent in the mid-Mesozoic era. After that, four to six faunal assemblages, the so-called African Faunal Strata (AFSs) can be distinguished. The isolation of Africa was broken intermittently by discontinuous "filter routes" tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrixalus
''Afrixalus'', commonly known as the banana frogs, spiny reed frogs, cat's eye reed frogs, or leaf-folding frogs, is a genus of frog in the family Hyperoliidae. They occur in the Subsaharan Africa. They lay their eggs in vegetation above water, often folding leaves around the eggs for protection—hence the common name "leaf-folding frogs". Species The following species are recognised in the genus ''Afrixalus '': The AmphibiaWeb lists 31 species. It does not include '' Afrixalus "quadrivittatus"'', and does not recognize ''Afrixalus brachycnemis The lesser banana frog (''Afrixalus brachycnemis'') is a species of frog in the family Hyperoliidae. It is found in Malawi, Mozambique, and Tanzania. Its natural habitats are moist savanna and shrubland, seasonally wet or flooded lowland grassl ...'' as a full species. References Hyperoliidae Amphibian genera Amphibians of Sub-Saharan Africa Taxa named by Raymond Laurent Taxonomy articles created by Polbot {{Hy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrixalus Lacteus
''Afrixalus lacteus'' is a species of frog in the family Hyperoliidae. It is endemic to Cameroon and known from a few mountains in the western part of the country; specifically, it has been recorded from Mount Manengouba (its type locality), Mount Nlonaka, and the southern Bamileke Highlands (Mount Bana, Foto, and Batie). Common name Cameroon banana frog has been coined for it. Prior to its description, it was confused with ''Afrixalus lindholmi''. Description Adult males measure and adult females in snout–vent length. The overall appearance is stocky. The fingers are about one-third webbed and the toes are half webbed; both finger and toe tips bear large discs. The colouration varies by the time of the day: during the daytime, the dorsum is almost completely milky white, with few brown chromatophores, whereas at night, there are numerous brown chromatophores and the dorsum may be completely brown. The canthus rostralis is always brown. The thighs, hands, and feet are lemon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptopelis
''Leptopelis'' is a genus of frogs in the family Arthroleptidae. They are found throughout Sub-Saharan Africa, excluding Madagascar. It is placed in monotypic subfamily Leptopelinae, although this subfamily is not always recognized. They have a number of common names, including forest treefrogs, tree frogs, leaf-frogs, and big-eyed frogs. Description ''Leptopelis'' are mostly medium-sized frogs (snout–vent length ), but '' Leptopelis palmatus'' can reach . Tympanum is present. Most species have expended digit tips. Ecology ''Leptopelis'' are mainly arboreal, but some species, especially in more arid areas, are terrestrial or even subfossorial. Breeding typically starts with the heavy rains in the beginning of the wet season. Eggs may be deposited either in water or in/on the ground. Development includes a free-living tadpole stage, with a possible exception of '' Leptopelis brevirostris'', whose large eggs suggest that development could be direct. Males typically call in bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" '' Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanum (anatomy)
The tympanum is an external hearing structure in animals such as mammals, birds, some reptiles, some amphibians and some insects. Using sound, vertebrates and many insects are capable of sensing their prey, identifying and locating their predators, warning other individuals, and locating potential mates and rivals by hearing the intentional or unintentional sounds they make. In general, any animal that reacts to sounds or communicates by means of sound, needs to have an auditory mechanism. This typically consists of a membrane capable of vibration known as the tympanum, an air-filled chamber and sensory organs to detect the auditory stimuli. Anurans In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. A frog's ear drum wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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