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Eleutherodactylus Variabilis
''Pristimantis variabilis'' is a species of frog in the family Strabomantidae. It is found in the lowland Amazon rainforest and Andean slopes in southern Colombia, eastern Ecuador, eastern Peru, and western Brazil (Amphibian Species of the World includes Brazil only tentatively). The specific name ''variabilis'' refers to the variable dorsal coloration of this frog. Common name variable robber frog has been proposed for it. Description Adult males measure and adult females in snout–vent length. The snout is acuminate in dorsal view and sloping in lateral profile. The tympanum is round and the supratympanic fold is well defined. The finger tips bear discs but no lateral fringes or webbing. The toe tips bear discs. The toes have poorly developed lateral fringes and slight webbing. Skin is dorsally shagreened, rarely smooth. The dorsum has variable coloration: the ground color can be cream, greenish brown, red, brown, or yellow, and there are brown, greenish brown, or reddish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), 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, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, 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 (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...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] |
Amphibians Described In 1968
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 declin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of Peru
Peru has some of the greatest biodiversity in the world. It belongs to the select group of mega diverse countries because of the presence of the Andes, Amazon rainforest, and the Pacific Ocean. It has the fourth-most tropical forests of any country and the ninth-most forest area. Natural protected areas The Constitution of Peru of 1993 recognized the natural resources and ecosystem variety of its country as a heritage. In 1900, the National System of Natural Areas that are protected by the Peruvian Government (SINANPE) was created. This entity depends on the National Institute of Natural Resources (INRENA). They also created a map of protection and preservation of historical - cultural heritage and nature. This map has 49 Natural Areas (10% of the country surface) that are preserved by the Government: 8 National Parks, 8 National Reservations, 6 National Sanctuaries, 3 Historical Sanctuaries, 4 National Forests, 6 Protection Forests, 1 Communal Reservation, 2 Hunting enclosed l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Ecuador
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, 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 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Colombia
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 Brazil
This is a list of the amphibian species recorded in Brazil. The total number of species is 946. Anura Amphignathodontidae *'' Fritziana fissilis'' (Miranda-Ribeiro, 1920) *'' Fritziana goeldii'' (Boulenger, 1895) *'' Fritziana ohausi'' (Wandolleck, 1907) *'' Gastrotheca albolineata'' (Lutz & Lutz, 1939) *'' Gastrotheca fissipes'' (Boulenger, 1888) *'' Gastrotheca microdiscus'' (Andersson in Lönnberg and Andersson, 1910) Aromobatidae *'' Allobates alagoanus'' (Bokermann, 1967) *'' Allobates brunneus'' (Cope, 1887) *'' Allobates caeruleodactylus'' (Lima & Caldwell, 2001) *'' Allobates capixaba'' (Bokermann, 1967) *'' Allobates carioca'' (Bokermann, 1967) *'' Allobates conspicuus'' (Morales, 2002 "2000") *''Allobates crombiei'' (Morales, 2002 "2000") *'' Allobates femoralis'' (Boulenger, 1884 "1883") *'' Allobates fuscellus'' (Morales, 2002 "2000") *''Allobates gasconi'' (Morales, 2002 "2000") *''Allobates goianus'' (Bokermann, 1975) *'' Allobates marchesianus'' (Melin, 1941) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pristimantis
''Pristimantis'' is a very large genus of frogs distributed in the southern Caribbean islands (Lesser Antilles) and in Central and South America from Honduras to northern Argentina and southern Brazil. With 596 described species (as of October 2022), the genus had more species than any other genus of vertebrate animals. Many of these species genus are endemic to the Northwestern Andean montane forests ecoregion in north-western South America. Etymology From the greek πριστις, serrated and μαντις, arboreal frog. Taxonomy Placement of this genus has varied greatly. ''Pristimantis'' was long included in the massive genus ''Eleutherodactylus'', and considered part of the family Leptodactylidae. Currently, the genus is placed placing in the family Strabomantidae The Strabomantidae are a family of frogs native to South America. These frogs lack a free-living larval stage and hatch directly into miniature "froglets". This family includes ''Pristimantis'', the most specio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontificia Universidad Católica Del Ecuador
The Pontificia Universidad Católica del Ecuador (PUCE) (English: ''Pontifical Catholic University of Ecuador'') is a Pontifical Catholic university founded in 1946 in Quito, Ecuador. History The university opened in the fall of 1946, with Carlos María de la Torre, archbishop of Quito, officiating. Aurelio Espinosa Pólit of the Society of Jesus (Jesuits) was the first rector. That fall there were 54 students and jurisprudence was the single faculty. Pope Francis visited the campus of PUCE on his trip to South America in July 2015. Location The principal campus of the university is in Quito. Other campuses are in Ambato (established in 1982), Esmeraldas (1981), Ibarra (1976), Santo Domingo de los Colorados (1996), and a regional campus in the province of Manabí (1993). The campus in Cuenca later became the Universidad del Azuay. All branches follow the National System PUCE. Departments *Faculty of Communication, Linguistics, and Literature *Faculty of Management, Accoun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canthus (herpetology)
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] |
Strabomantidae
The Strabomantidae are a family of frogs native to South America. These frogs lack a free-living larval stage and hatch directly into miniature "froglets". This family includes ''Pristimantis'', the most speciose genus of any vertebrate. Systematics The following subfamilies and genera are in the family Strabomantidae. *Holoadeninae **'' Bahius'' Dubois, Ohler, and Pyron, 2021 **'' Barycholos'' Heyer, 1969 **''Bryophryne'' Hedges, Duellman, and Heinicke, 2008 **''Euparkerella'' Griffiths, 1959 **'' Holoaden'' Miranda-Ribeiro, 1920 **'' Microkayla'' De la Riva, Chaparro, Castroviejo-Fisher, and Padial, 2017 **''Noblella'' Barbour, 1930 **''Psychrophrynella'' Hedges, Duellman, and Heinicke, 2008 **''Qosqophryne'' Catenazzi, Mamani, Lehr, and von May, 2020 *Hypodactylinae **'' Niceforonia'' Goin and Cochran, 1963 *Pristimantinae **'' Lynchius'' Hedges, Duellman, and Heinicke, 2008 **'' Oreobates'' Jiménez de la Espada, 1872 **''Phrynopus'' Peters, 1873 **''Pristimantis'' Jiméne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris (anatomy)
In humans and most mammals and birds, the iris (plural: ''irides'' or ''irises'') is a thin, annular structure in the eye, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. Eye color is defined by the iris. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Structure The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, beneath the stroma, pigmented epithelial cells. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles ( dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds. The sphincter pupillae is the opposing muscle of the dilator pupillae. The pupil's diameter, and thus the inner border of the iris, changes size when constricting or dilating. The outer border of the iris does not change size. The constricti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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