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Brown Frogs
''Rana'' is a genus of frogs commonly known as the Holarctic true frogs, pond frogs or brown frogs. Members of this genus are found through much of Eurasia and western North America. Many other genera were formerly included here. These true frogs are usually largish species characterized by their slim waists and wrinkled skin; many have thin ridges running along their backs, but they generally lack "warts" as in typical toads. They are excellent jumpers due to their long, slender legs. The typical webbing found on their hind feet allows for easy movement through water. Coloration is mostly greens and browns above, with darker and yellowish spots. Distribution and habitat Many frogs in this genus breed in early spring, although subtropical and tropical species may breed throughout the year. Males of most of the species are known to call, but a few species are thought to be voiceless. Females lay eggs in rafts or large, globular clusters, and can produce up to 20,000 at one time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Red-legged Frog
The northern red-legged frog (''Rana aurora'') is a species of amphibian, whose range is the coastal region stretching from southwest British Columbia to southern Mendocino County in Northern California, and is protected in Oregon and California.''California Wildlife, Volume I: Amphibians and Reptiles'', ed. by D.C. Zeiner et al., published by the California State Department of Fish and Game, 2 May 1988 As a member of the genus ''Rana'', this species is considered a true frog, with characteristic smooth skin and a narrow waist. This frog requires still waters for breeding, and is rarely found at any great distance from its breeding ponds or marshes. Northern red-legged frog adults may attain a length of ; they have dark facial masks and single characteristic light stripes along their jawlines. Stebbins, R.C. ''Amphibians and Reptiles of North America'', McGraw Hill, New York (1954) The northern red-legged frog has long, powerful legs well adapted to jumping. It is one of two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glandirana
''Glandirana'' is a genus of true frogs (family Ranidae) found in the East Asia (eastern China, Korea, Japan, and possibly Primorsky Krai in the Russian Far East). The name means ‘glandular frog’. ''Glandirana'' is a genus split off from ''Rana''. All species, except the recently described '' Glandirana susurra'', were originally included in ''Rana''; some of them have been placed in genus ''Rugosa'', now synonymized with ''Glandirana''. The monophyly In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ... of the genus has been questioned, but it is supported by recent molecular work. ''Glandirana'' seems to be a sister taxon of ''Hylarana''. At moment, the following species are included in the genus: * '' Glandirana emeljanovi'' (Nikolskii, 1913) * '' Glandirana minima'' (Ting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rana Asiatica
The central Asiatic frog (''Rana asiatica''), or Asian frog, is a species of true frog, found in China, Kazakhstan, and Kyrgyzstan. Its natural habitats are temperate forests, temperate shrubland, temperate grassland, rivers, intermittent rivers, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, freshwater springs, inland deltas, arable land, pastureland, rural gardens, urban areas, water storage areas, pond A pond is an area filled with water, either natural or artificial, that is smaller than a lake. Defining them to be less than in area, less than deep, and with less than 30% emergent vegetation helps in distinguishing their ecology from ...s, aquaculture ponds, and irrigated land. It is not considered threatened by the IUCN. References Rana (genus) Frogs of Asia Least concern biota of Asia Taxonomy articles created by Polbot Amphibians described in 1898 {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rana Arvalis
The moor frog (''Rana arvalis'') is a slim, reddish-brown, semiaquatic amphibian native to Europe and Asia. Moor frogs are known for their ability to freeze solid and survive thawing. The frog makes use of various cryoprotectants i.e. antifreeze that decreases its internal freezing temperature. The species is distributed over a large range, covering a significant portion of Eurasia. Male moor frogs are known to turn blue temporarily during the height of mating season. This coloration is assumed to signal a mate's fitness. Moor frogs typically mate through multimale amplexus a form of polyandry. The moor frog spawns its eggs in large batches in still bodies of acidic waters. Human-caused pollution is causing excessive acidification of habitat which harms egg health. The moor frog's habitat is also under destruction due to a variety of other anthropogenic means. The species has an IUCN listing of Least Concern. However, a majority of European states independently consider the con ... [...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] |
Siberian Tree Frog
''Rana amurensis'' (Khabarovsk frog, Siberian wood frog, Heilongjiang brown frog or Amur brown frog) is a species of true frog found in northern Asia. It ranges across western Siberia, as well as northeastern China, northeastern Mongolia, and on the northern Korean Peninsula and on Sakhalin. '' Rana coreana'' was previously included in this species as a subspecies. Found at latitudes up to 71° N, it is the northernmost wild amphibian species. According to the IUCN, the chief threat to the species is habitat loss, as it is only mildly tolerant of disturbance. In addition, it has become a frequent subject of hunting in Russia since the 1990s. It is not considered threatened on a global scale though. Favoring lowlands, it is seldom encountered at elevations of more than 600 m. A habitat generalist, ''Rana amurensis'' favors open ground, but is also found in both deciduous and coniferous forests. In the winter, it hibernates on pond bottoms. Adults are light brown with smooth skin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rana Basaltica
''Rana basaltica'' is an extinct species of frog from Middle Miocene of China. It is known from the Shanwang formation beds in the Shanwang National Geological Park, Shandong Province, China. Taxonomy ''Rana basaltica'' was described by C.C. Young in 1936 based on a single specimen. Although not explicitly designated as the holotype, this specimen is the holotype by monotypy. However, no information where it was deposited was given, and the holotype is now considered lost. Moreover, the description was cursory, and the name has even been considered a ''nomen dubium''. Therefore, Roček and colleagues designated a neotype for ''Rana basaltica'' in 2011. This specimen ( IVPP V11706) originates from the same fossil locality and bed, fits the diagnosis, and is preserved similarly to Young's original specimen. Description ''Rana basaltica'' measured in snout–vent length. The skull is somewhat shorter than it is wide and is nearly triangular in shape. There are eight procoelous a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvirana
''Sylvirana'' is a genus of true frogs, family Ranidae, found in South and East Asia, from northeastern India in west to China in the north, Taiwan in the east, and Thailand in the south. Originally proposed as a subgenus of ''Rana'' in 1992, it has been considered both a full genus and a synonym of ''Hylarana''. Its current recognition at generic level stems from molecular genetic analyses published in 2015. Description ''Sylvirana'' are generally medium-size frogs with robust bodies. They have similar postocular masks as in ''Papurana''. The upper lip is gray, off-white, or occasionally, mottled. The dorsum is shagreened with spicules, or it can be warty. The dorsolateral folds a medium-sized and well-developed, either pale or the same color as the dorsum. The flanks have dark coloration below lateral ridges that fades to pale with well-defined dark spots. Males have paired vocal sac The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanguirana
''Sanguirana'' is a genus of true frogs (family Ranidae) found in the Malay Archipelago, including the Philippines, the Maluku Islands, Sulawesi, and Seram. ''Sanguirana'' was first introduced as a sub-genus of ''Rana'', with ''Rana sanguinea'' as the type species. All species, except the more recently described '' Sanguirana aurantipunctata'' and '' Sanguirana acai'', were originally included in ''Rana''; more recently, they have been placed in genus ''Hylarana ''Hylarana'', commonly known as golden-backed frogs, is a genus of true frogs found in tropical Asia. It was formerly considered highly diverse, containing around 84 to 96 Valid name (zoology), valid species, but taxonomic revision resulted in a ...''. The delineation of the genus and its relationship to other ranid genera is still under discussion. At moment, the following species are included in the genus: * '' Sanguirana acai'' Brown, Prue, Chan, Gaulke, Sanguila, and Siler, 2017 * '' Sanguirana aurantipunctata'' F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulchrana
''Pulchrana'' is a genus of ranid frogs found in south-eastern Asia, Indonesia and the Philippines. Species The following species are recognised in the genus ''Pulchrana'': * '' Pulchrana banjarana'' (Leong and Lim, 2003) * '' Pulchrana baramica'' (Boettger, 1900) * ''Pulchrana centropeninsularis'' (Chan, Brown, Lim, Ahmad, and Grismer, 2014) * '' Pulchrana debussyi'' (Van Kampen, 1910) * ''Pulchrana fantastica'' Arifin, Cahyadi, Smart, Jankowski, and Haas, 2018 * '' Pulchrana glandulosa'' (Boulenger, 1882) * ''Pulchrana grandocula'' (Taylor, 1920) * ''Pulchrana guttmani'' (Brown, 2015) * ''Pulchrana laterimaculata'' (Barbour and Noble, 1916) * ''Pulchrana mangyanum'' (Brown and Guttman, 2002) * '' Pulchrana melanomenta'' (Taylor, 1920) * '' Pulchrana moellendorffi'' (Boettger, 1893) * ''Pulchrana picturata'' (Boulenger, 1920) * ''Pulchrana rawa'' (Matsui, Mumpuni, and Hamidy, 2012) * ''Pulchrana siberu'' (Dring, McCarthy, and Whitten, 1990) * ''Pulchrana signata'' (Günther, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelophylax
''Pelophylax'' is a genus of true frogs widespread in Eurasia, with a few species ranging into northern Africa. This genus was erected by Leopold Fitzinger in 1843 to accommodate the green frogs of the Old World, which he considered distinct from the brown pond frogs of Carl Linnaeus' genus ''Rana''. They are also known as water frogs, as they spend much of the summer living in aquatic habitat; the pond frogs can be found more often, by comparison, on dry land, as long as there is sufficient humidity. Yet there are species of Eurasian green frogs – the Central Asian '' P. terentievi'', or the Sahara frog (''P. saharicus'') – which inhabit waterholes in the desert. Systematics and taxonomy Most authors throughout the 19th and 20th century disagreed with Fitzinger's assessment. The green frogs were included again with the brown frogs, in line with the tendency to place any frog similar in habitus to the common frog (''R. temporaria'') in ''Rana''. That genus, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odorrana
''Odorrana'' (commonly known as the odorous frog) is a genus of true frogs (Ranidae) from East Asia and surrounding regions. Many of these frogs inhabit fast-flowing mountain streams, and they typically have a remarkably pointed snout, as evidenced by common names like tip-nosed frog and scientific names like ''nasica'' or ''nasutus'' ("with a nose"). Systematics and taxonomy ''Odorrana'' has a confusing taxonomic and systematic history. Most species placed here were initially placed in ''Rana''. Some were considered to belong in '' Amolops'' and ''Huia'' instead, and yet again others were separated as ''Eburana''. The most extreme proposal was to merge ''Odorrana'' into ''Huia''.Cai ''et al.'' (2007), Stuart (2008) In the early 21st century, molecular phylogenetic studies established that the systematic confusion was due to widespread convergent evolution between ''Amolops'', ''Huia'' and ''Odorrana'', which actually represent quite distinct lineages of Raninae. This necessitat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
