Dendrophryniscus Skuki

	Dendrophryniscus Skuki ''Dendrophryniscus skuki'' is a species of toad in the family Bufonidae. It is endemic to northeastern Brazil and only known from its type locality in the municipality of Itacaré, state of Bahia. This species is dedicated to herpetologist Gabriel "Gabo" Skuk, the species describer's friend who perished in a diving accident. Description The holotype is an adult male with a stout build and measuring in snout–vent length. The head is slightly longer than it is wide. The snout is long, narrow, and spatulate when viewed from above. The canthus rostralis is distinct and slightly concave. The eyes are large but not prominent. The tympanum is hidden. Apart from the gular region and chest that are barely rugose, skin is rugose with uniformly distributed rounded tubercles. The parotoid glands are large and rounded. The fingers and the toes are slender and have rounded tips and no webbing, although the toes are slightly fringed. The preserved specimen is dorsally dark brownish g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Ulisses Caramaschi Ulisses Caramaschi is a Brazilian herpetologist specializing in neotropical frogs. He works at the National Museum of Brazil and is a professor at its Department of Vertebrates. Education Caramaschi possesses a bachelor's degree from the Botucatu campus of São Paulo State University and a master's from the University of Campinas in ecology, and a doctorate in biological science from São Paulo State University. Taxa described ''Bufo scitulus'' ''Chiasmocleis alagoanus'' ''Chiasmocleis atlantica'' ''Chiasmocleis capixaba'' ''Chiasmocleis carvalhoi'' ''Chiasmocleis cordeiroi'' ''Chiasmocleis crucis'' ''Chiasmocleis jimi'' ''Chiasmocleis mehelyi'' ''Crossodactylus bokermanni'' ''Crossodactylus dantei'' ''Crossodactylus lutzorum'' ''Elachistocleis piauiensis'' ''Gastrotheca pulchra'' ''Hyla araguaya'' ''Hyla atlantica'' ''Hyla buriti'' ''Hyla cachimbo'' ''Hyla cerradensis'' ''Hyla elianeae'' ''Hyla ericae'' ''Hyla ibitipoca'' ''Hyla izecksohni'' ''Hyla jimi' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	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 works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Endemic Fauna Of Brazil 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]
picture info	Amphibians Of Brazil 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]
	Dendrophryniscus ''Dendrophryniscus'' is a genus of true toads in the family Bufonidae, sometimes known as tree toads. They are endemic to the Atlantic Forest of Brazil. Taxonomy Until 2012, the genus ''Dendrophryniscus'' included the species now separated to the genus '' Amazophrynella''. This was based on molecular genetic evidence that indicated deep divergence between an Amazonian and an Atlantic Forest clade, the latter retaining the name ''Dendrophryniscus'' whereas the former was described as a new genus ''Amazonella'', later amended to ''Amazophrynella'' because of homonymy. Description The species of ''Dendrophryniscus'' are small to medium-sized toads measuring in snout–vent length. Their body form resembles those of the genus ''Atelopus''. The hind limbs are well developed. The parotoid glands are absent, as are external tympana. The skin is uniformly granulose to warty. Dorsal coloration is cryptic. With the exception of '' Dendrophryniscus leucomystax'', species of the genus ''D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	IUCN Red List Of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the International Union for Conservation of Nature, IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to International Unio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Above Sea Level Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called "feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Parotoid Gland The parotoid gland (alternatively, paratoid gland) is an external skin gland on the back, neck, and shoulder of toads and some frogs and salamanders. It can secrete a number of milky alkaloid substances (depending on the species) known collectively as bufotoxins, which act as neurotoxins to deter predation. These cutaneous glands are called parotoid as they are somewhat similarly positioned to mammalian parotid gland, although the latter have a different function, excreting saliva within the mouth rather than externally excreted defensive chemicals. A study of the parotoid glands of the Colorado River toad in 1976 found that the parotoid glands were "composed of numerous lobules", each of which is a separate unit with a lumen surrounded by a double cell layer. The cell layers have interlocking microvilli. The study found that the outer cell layer resembled smooth muscle cells, with some organelles hypothesised to "function in some aspects of venom synthesis, active cellular trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Canthus Rostralis In snakes and amphibians, the canthus, canthal ridge or ''canthus rostralis'',Spawls S, Branch B. 1995. ''The Dangerous Snakes of Africa''. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . is the angle between the flat crown of the head and the side of the head between the eye and the snout,Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Krieger Publishing Company, Malabar, Florida. . or more specifically, between the supraocular scale and the rostral scale. It is defined as a sharp ridge in many viperids, but is rounded in most rattlesnakes Rattlesnakes are venomous snakes that form the genera ''Crotalus'' and ''Sistrurus'' of the subfamily Crotalinae (the pit vipers). All rattlesnakes are vipers. Rattlesnakes are predators that live in a wide array of habitats, hunting small anima ..., for example.Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Itacaré Itacaré is a Municipalities of Brazil, municipality in the Cocoa bean, cocoa zone of the state of Bahia in Brazil, south of Salvador, Brazil, Salvador. Location Itacaré is located 70 km north of Ilhéus where the Rio de Contas, which comes from the Chapada Diamantina, meets the Atlantic Ocean. Itacaré has about 27,000 residents. Out of these, approximately 50% live in the rural interior. A mixture of races - Indigenous peoples in Brazil, Amerindian, Afro-Brazilian, black and White Brazilian, white - can be seen in the features of the natives, called "nação grapiúna", whom Jorge Amado affectionately referred to as "the captivating people of this land". The town was part of São Jorge dos Ilhéus, one of the 13 original Portuguese colonial Captaincies founded in 1532. Itacaré was first officially recognized in 1732 as the Vila de São Miguel da Barra do Rio de Contas (Village of Saint Michael of the Bar of the Contas). The village was established by the Jesuits who worke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Snout–vent Length Snout–vent length (SVL) is a morphometric measurement taken in herpetology from the tip of the snout to the most posterior opening of the cloacal slit (vent)."direct line distance from tip of snout to posterior margin of vent" It is the most common measurement taken in herpetology, being used for all amphibians, lepidosaurs, and crocodilians (for turtles, carapace length (CL) and plastral length (PL) are used instead). The SVL differs depending on whether the animal is struggling or relaxed (if alive), or various other factors if it is a preserved specimen. For fossils, an osteological correlate Osteological correlates are marks on the bones of animals that are made from the causal interactions of the soft-tissue Soft tissue is all the tissue in the body that is not hardened by the processes of ossification or calcification such as bo ... such as precaudal length must be used. When combined with weight and body condition, SVL can help deduce age and sex. Advantages Bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (state), São Paulo, Minas Gerais, and Rio de Janeiro (state), Rio de Janeiro) and the 5th-largest by area. Bahia's capital is the city of Salvador, Bahia, Salvador (formerly known as "Cidade do São Salvador da Bahia de Todos os Santos", literally "City of the Saint Savior of the Bay of All the Saints"), on a Spit (landform), spit of land separating the Bay of All Saints from the Atlantic. Once a monarchial stronghold dominated by Agriculture in Brazil, agricultural, Slavery in Brazil, slaving, and ranching interests, Bahia is now a predominantly Working class, working-class industrial and agricultural state. The state is home to 7% of the Brazilian population and produces 4.2% of the country's GDP. Name The name of the state derives from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]