|
Stefania
''Stefania'' is a genus of frogs in the family Hemiphractidae. They are native to the highlands of the Guiana Shield in southern Venezuela, Guyana, and adjacent far northern Brazil. Most are restricted to the tepui highlands, but '' S. evansi'' also occurs in lowlands. On most mountains there are only 1–2 species from this genus, but five are known from Mount Ayanganna and the neighbouring Mount Wokomung has six species. They are usually found near streams at low levels on branches/leaves or on the ground among vegetation/rocks. They are famous for their breeding strategy where the development from eggs to froglets is completed on the back of the female (the eggs hatch to froglets; there is no free-swimming tadpole A tadpole or polliwog (also spelled pollywog) is the Larva, larval stage in the biological life cycle of an amphibian. Most tadpoles are fully Aquatic animal, aquatic, though some species of amphibians have tadpoles that are terrestrial animal, ... stage). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Evansi
''Stefania evansi'' is a species of frog in the family Hemiphractidae. ''Stefania evansi'' is, along with other closely related frogs, known for its unusual reproductive mode where females carry the eggs and juveniles on their back. It is sometimes known under common names Groete Creek carrying frog, Groete Creek treefrog, or Evans' stefania (the "treefrog" designation can be misleading as ''Stefania'' are no longer included in the family Hylidae). These names refer to its Type locality (biology), type locality, Groete Creek in the region Essequibo Islands-West Demerara, Guyana, where the holotype was collected by one Dr. R. Evans. Distribution and habitat ''Stefania evansi'' is endemic to Guyana and distributed in forested lowlands of west-central Guyana at altitudes below . Frogs collected at higher altitudes probably represent ''Stefania scalae'', a species that was for a while considered to be Synonym (taxonomy), synonymous with ''Stefania evansi''. It generally occurs in habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Roraimae
''Stefania roraimae'' (common names: Roraima treefrog, Roraima stefania) is a species of frog in the family Hemiphractidae. It is endemic to Guyana. Its type locality is Mount Roraima; it is also known from Mount Ayanganna and Mount Wokomung. It presumably occurs in the adjacent Venezuela and Brazil too. Description Male ''Stefania roraimae'' grow to snout–vent length of and females to . The smallest recorded independent juveniles are in snout–vent length. Reproduction is not known for this species, but presumably the females carry eggs on their backs, with the juveniles developing fully there, as known for many other species of ''Stefania ''Stefania'' is a genus of frogs in the family Hemiphractidae. They are native to the highlands of the Guiana Shield in southern Venezuela, Guyana, and adjacent far northern Brazil. Most are restricted to the tepui highlands, but '' S. evansi'' ...''. Habitat and conservation ''Stefania roraimae'' are found in primary forests at al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Ayangannae
''Stefania ayangannae'' (common name: Ayanganna stefania) is a species of frog in the family Hemiphractidae. It is endemic to Guyana where it is known from Mount Ayanganna (the type locality) and Mount Wokomung, both in the Pacaraima Mountains. Description ''Stefania ayangannae'' are yellowish-brown or yellowish-red frogs with diagonal paravertebral dark brown marks, often joined to form chevrons in their dorsum. The head has a dark brown patch is present. Clutch size is 4–9 eggs. Females carry the eggs on their back until they are fully developed and hatch as small froglets; the male and female cooperate to get the eggs on the female's back. Habitat Its natural habitat In ecology, habitat refers to the array of resources, 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 ... are high-elevation (>1200 m) forests. These frogs can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Riae
''Stefania riae'' (common name: Sarisarinama carrying frog, ) is a species of frog in the family Hemiphractidae. This species is only known from Cerro Sarisariñama, a tepui in the Bolívar State, Venezuela. Etymology The specific name ''riae'' honors Ria Hoogmoed-Verschoor, spouse of the second author. Description Adult males measure and females in snout–vent length. The tympanum is visible and relatively large. The canthus rostralis is distinct. All fingers and toes have well-developed discs. The toes have basal webbing. There are four color forms without consistent relationship with a specimen's sex. Possible patterns are 1) mostly pale brown, possibly with a few indistinct darker spots, 2) pattern that is other wise variable but always with paler dorsal background than dorsolateral stripes, 3) chevrons or spots on the dorsum, and 4) brown dorsum without dorsolateral stripes and chevrons, but with several dark brown spots and golden spots scattered around the head, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Breweri
''Stefania breweri'', also known as Brewer's carrying frog (in Spanish ''rana stefania de Brewer''), is a species of frog in the family Hemiphractidae. It is endemic to Cerro Autana, Venezuela, and only known from a single specimen (holotype). It was named for Venezuelan explorer Charles Brewer-Carías. Description The holotype, of unknown sex, measures in snout–vent length (the specimen is somewhat dehydrated was not dissected to avoid damage). The snout is subacuminate in dorsal view and truncate in profile. The canthus rostralis is distinct and straight. The Tympanum (anatomy), tympanum is distinct with an ossified annulus. The supra-tympanic fold is narrow but distinct. Skin is smooth. The fingers have small discs and no webbing. The toes have small discs and basal webbing. The preserved specimen is dorsally pale orange. A pale white inter-orbital bar is present. The flanks are whitish with a few dark brown bars. The throat, chest, and belly are uniformly pinkish. Habita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Tamacuarina
''Stefania tamacuarina'' is a species of frog in the family Hemiphractidae. It is found in the Sierra Tapirapecó in the Amazonas state of Venezuela as well as in the adjacent Amazonas state of Brazil (where the range is known as Serra do Tapirapecó). The specific name ''tamacuarina'' refers to the type locality, a spur ridge north of Pico Tamacuari. Description The type series consists of two sub-adult females measuring in snout–vent length; the maximum size could therefore be considerable higher. The head is slightly wider than it is long. The snout is short and rounded or nearly truncate. The tympanum is distinct, round, and relatively large. The canthus rostralis is distinct. The fingers and toes have terminal discs and the toes have basal webbing. Skin on the dorsum is weakly granular. Ground color is greenish brown to brown. There are bold, darker brown patterns, including a large, rectangular brown blotch from between the eyes backwards to the level of arm inser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Oculosa
''Stefania oculosa'' (common name in ) is a species of frog in the family Hemiphractidae. It is endemic to the Bolívar state of southern Venezuela and only known from Cerro Jaua, a tepui; it possibly occurs more widely. It was found on rocks in a fast-flowing cascading stream where it co-occurred with ''Stefania percristata ''Stefania percristata'' () is a species of frog in the family Hemiphractidae. It is endemic to Venezuela and only known from its type locality, Cerro Jaua in Bolívar State. It occurs along streams at the top of the tepui. It is a nocturnal ...''. The known range is within the Jaua-Sarisariñama National Park, and the species is not facing known threats. References oculosa Amphibians of Venezuela Endemic fauna of Venezuela Taxa named by Josefa Celsa Señaris Amphibians described in 1997 Taxonomy articles created by Polbot Amphibians of the Tepuis {{Hemiphractidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Neblinae
''Stefania neblinae'' is a species of frogs of the family Hemiphractidae. It is known from the slopes of Pico da Neblina, in the Pico da Neblina National Park, on the border of Brazil and Venezuela. It represents the first record of the genus ''Stefania ''Stefania'' is a genus of frogs in the family Hemiphractidae. They are native to the highlands of the Guiana Shield in southern Venezuela, Guyana, and adjacent far northern Brazil. Most are restricted to the tepui highlands, but '' S. evansi'' ...'' from Brazil. It is currently known only from Brazil but its range could extend into adjacent Venezuela. References neblinae Endemic frogs of Brazil Amphibians described in 2010 {{Hemiphractidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Coxi
''Stefania coxi'' is a species of frog in the family Hemiphractidae. It is endemic to Guyana and has been found on Mount Ayanganna and Mount Wokomung. Its natural habitat is subtropical or tropical moist montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is ...s at higher elevations. References * MacCulloch, R.D. and A. Lathrop. 2002. Exceptional diversity of Stefania on Mount Ayanganna, Guyana: three new species and new distribution records. Herpetologica 58:327-346. * MacCulloch, R.D. and A. Lathrop. 2006. Stefania coxi. Catalogue of American Amphibians and Reptiles 826: 1–2. *MacCulloch, R.D., A. Lathrop and S.Z. Khan. 2006. Exceptional diversity of Stefania (Anura: Cryptobatrachidae) II: six species from Mount Wokomung, Guyana. Phyllomedusa 5: 31–41. Stefania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Percristata
''Stefania percristata'' () is a species of frog in the family Hemiphractidae. It is endemic to Venezuela and only known from its type locality, Cerro Jaua in Bolívar State. It occurs along streams at the top of the tepui. It is a nocturnal Nocturnality is a ethology, behavior in some non-human animals characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatur ... species found on branches of vegetation above the ground. Conservation status The tepui is within the Jaua-Sarisariñama National Park, and no major threats to this species have been identified. References percristata Amphibians of Venezuela Endemic fauna of Venezuela Taxonomy articles created by Polbot Amphibians described in 1997 Amphibians of the Tepuis {{Hemiphractidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefania Marahuaquensis
''Stefania marahuaquensis'' () is a species of frog in the family Hemiphractidae. It is endemic to Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ... and known from Cerro Duida and Cerro Marahuaca, both in Amazonas State. Its occurs on rocks along the forested margins of small streams at elevations of asl. The range is within the Duida–Marahuaca National Park, and no major threats to this species have been identified. References marahuaquensis Amphibians of Venezuela Endemic fauna of Venezuela Taxonomy articles created by Polbot Amphibians described in 1961 {{Hemiphractidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
