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Pyxicephalus Angusticeps
''Pyxicephalus'' (πυξίς, ''pyxis'' = "(round) box," κεφαλή, ''kephalē'' = "head") is a genus of true frogs from Sub-Saharan Africa, commonly referred to as African bull frogs or bull frogs. They are very large (''P. adspersus'') to large (remaining species) frogs, with females significantly smaller than males. They may take decades to reach their full size potential and they are some of the longest-living frogs, possibly able to reach ages as high as 45 years. These bulky and voracious predators will eat any animal (including small vertebrates and conspecifics) they can fit in their large mouth that has two fang-like projections on the lower jaw, but they are themselves commonly eaten by humans, predatory birds, mammals and monitor lizards. They remain hidden—they are fossorial—for much of the year, but emerge to breed in temporary pools after rains. The tadpoles often are guarded by the male. Species There are four recognized species: * ''Pyxicephalus adspersus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyxicephalus Adspersus
The African bullfrog (''Pyxicephalus adspersus'') is a species of frog in the family Pyxicephalidae. It is also known as the pixie frog due to its scientific name. It is found in Angola, Botswana, Kenya, Malawi, Mozambique, Namibia, South Africa, Tanzania, Uganda, Zambia, Zimbabwe, and possibly the Democratic Republic of the Congo. It has been extirpated from Eswatini. It has long been confused with the edible bullfrog (''P. edulis'') and species boundaries between them, including exact range limits, are not fully understood. Additionally, '' P. angusticeps'' of coastal East Africa only was revalidated as a separate species in 2013. The natural habitat of the African bullfrog is moist to dry savanna, subtropical to tropical dry shrubland, intermittent freshwater lakes, intermittent freshwater marshes, arable land, pastureland, canals, and flooded ditches. It is among the largest anurans on the planet, sixth only to the goliath frog, the helmeted water toad, the Lake Junin fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edible Bullfrog
The edible bullfrog (''Pyxicephalus edulis''), also known as the pixie frog, lesser bullfrog or Peter's bullfrog, is a large-bodied African species of frog in the family Pyxicephalidae. Description The edible bullfrog is a large bodied frog in which the males typically reach in snout–to–Cloaca, vent length and the females . Exceptionally large males may even reach , although the species does not approach the sizes attained by the related African bullfrog (''P. adspersus''). The females of the edible bullfrog are much less bulky than the males and typically reach just half of the weight of the males. There are two tooth like structures in the lower jaw of the broad mouth bears which point upwards. The skin of the edible bullfrog has slight, rather rounded warts. It has short lateral ridges which never stretch all the way from the head to the end of the body, their form changes considerably as the frog grows. The young frogs are quite sturdy and look almost plump but the adults ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Sub-Saharan Africa
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] |
Pyxicephalidae
The Pyxicephalidae are a family of frogs currently found in sub-Saharan Africa. However, in the Eocene, the taxon '' Thaumastosaurus'' lived in Europe. Classification The Pyxicephalidae contain two subfamilies, with a total of 12 genera. This family was formerly considered part of the family Ranidae. Family Pyxicephalidae * Subfamily Cacosterninae'' ** Genus '' Amietia'' (16 species) ** Genus '' Anhydrophryne'' (3 species) ** Genus '' Arthroleptella'' (10 species) – moss frogs ** Genus '' Cacosternum'' (16 species) ** Genus '' Microbatrachella'' (monotypic) – micro frog ** Genus '' Natalobatrachus'' (monotypic) ** Genus '' Nothophryne'' (5 species) – mongrel frogs ** Genus '' Poyntonia'' (monotypic) ** Genus '' Strongylopus'' (10 species) ** Genus ''Tomopterna'' (16 species) *Subfamily Pyxicephalinae'' ** Genus '' Aubria'' (2 species) – Masako fishing frog, brown ball frog ** Genus '' Pyxicephalus'' (4 species) – African bull frogs, pixie frog ** Genus '' Thaumastos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyxicephalus
''Pyxicephalus'' (πυξίς, ''Pyxis (pottery), pyxis'' = "(round) box," κεφαλή, ''kephalē'' = "head") is a genus of true frogs from Sub-Saharan Africa, commonly referred to as African bull frogs or bull frogs. They are very large (''P. adspersus'') to large (remaining species) frogs, with females significantly smaller than males. They may take decades to reach their full size potential and they are some of the longest-living frogs, possibly able to reach ages as high as 45 years. These bulky and voracious predators will eat any animal (including small vertebrates and Cannibalism (zoology), conspecifics) they can fit in their large mouth that has two fang-like projections on the lower jaw, but they are themselves commonly eaten by humans, predatory birds, mammals and monitor lizards. They remain hidden—they are fossorial—for much of the year, but emerge to breed in temporary pools after rains. The tadpoles often are guarded by the male. Species There are four recogniz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Dubium
In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a specimen belongs to that group or not. This may happen if the original type series (i. e. holotype, isotype, syntype or paratype) is lost or destroyed. The zoological and botanical codes allow for a new type specimen, or neotype, to be chosen in this case. A name may also be considered a ''nomen dubium'' if its name-bearing type is fragmentary or lacking important diagnostic features (this is often the case for species known only as fossils). To preserve stability of names, the ''International Code of Zoological Nomenclature'' allows a new type specimen, or neotype, to be chosen for a ''nomen dubium'' in this case. 75.5. Replacement of unidentifiable name-bearing type by a neotype. When an author considers that the taxonomic identity of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Steindachner
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian Zoology, zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner described hundreds of new species of fish and dozens of new amphibians and reptiles. At least seven species of reptile have been named after him. Work and career Being interested in natural history, Steindachner took up the study of fossil fishes on the recommendation of his friend Eduard Suess (1831–1914). In 1860 he was appointed to the position of director of the fish collection at the Naturhistorisches Museum, a position which had remained vacant since the death of Johann Jakob Heckel (1790–1857). (in German). Steindachner's reputation as an Ichthyology, ichthyologist grew, and in 1868 he was invited by Louis Agassiz (1807–1873) to accept a position at the Museum of Comparative Zoology at Harvard University. Steindachner took ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyxicephalus Cordofanus
''Pyxicephalus cordofanus'', also known as ''Rana cordofana'', is a possible species of frog. It is a ''nomen dubium'', a name of unknown application. Franz Steindachner, who described the species in 1867, specified neither a holotype nor syntypes. The syntypes are believed to be at the Natural History Museum, Vienna (NHMW), possibly including the specimen NHMW 2673. The International Union for Conservation of Nature lists it as "data deficient", citing "continuing doubts as to its taxonomic validity, extent of occurrence, status and ecological requirements". Description The original species description, based on two specimens, is summarized as follows: Head considerably narrower, snout longer and sharper than in the two species mentioned earlier Pyxicephalus adspersus">''Pyxicephalus adspersus'', ''Tomopterna delalandii">Pyxicephalus delalandii'' Tongue roundish, at the posterior margin only very slightly constricted, tongue lobes very short; Back with brownish marbling and sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calabresi's Bullfrog
Calabresi's bullfrog (''Pyxicephalus obbianus'') is a species of frogs in the family Pyxicephalidae. It is endemic to northeastern and central Somalia. This uncommon species breeds in temporary ponds. Outside the breeding season, it is fossorial A fossorial () animal is one adapted to digging which lives primarily, but not solely, underground. Some examples are badgers, naked mole-rats, clams, meerkats, and mole salamanders, as well as many beetles, wasps, and bees. Prehistoric eviden ..., and little is known about its habitat. It is assumed live in dry savannah and semi-arid habitats. Significant threats to it are unlikely, although livestock grazing, and perhaps fire and droughts, might have an impact. References Pyxicephalus Frogs of Africa Amphibians of Somalia Endemic fauna of Somalia Amphibians described in 1927 Taxonomy articles created by Polbot {{Ranoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enrica Calabresi
Enrica Calabresi (10 November 1891, in Ferrara – 20 January 1944, in Castelfiorentino) was an Italian zoologist, herpetologist, and entomologist. Her family was part of the Jewish community which has played an important role in Ferrara, continuously since the Middle Ages. Life Calabresi was the last of four children of Vito Calabresi and Ida Fano, a family that was part of the wealthy Jewish bourgeoisie of Ferrara, Italy. In 1909, Calabresi enrolled in the Faculty of Mathematics of the Free University of Ferrara to study science. She graduated from the University of Florence in natural sciences on 1 July 1914 with a thesis on the hedgehog, ''Sul comportamento del condrioma nel pancreas e nelle ghiandole salivari del riccio durante il letargo invernale e l’attività estiva'' n the Behavior of the Chondriome in the Pancreas and in the Salivary Glands of the Hedgehog during Winter Hibernation and Summer Activity Scientist Beginning on 1 February 1914, before graduating, sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyxicephalus Obbianus
Calabresi's bullfrog (''Pyxicephalus obbianus'') is a species of frogs in the family Pyxicephalidae. It is endemic to northeastern and central Somalia. This uncommon species breeds in temporary ponds. Outside the breeding season, it is fossorial A fossorial () animal is one adapted to digging which lives primarily, but not solely, underground. Some examples are badgers, naked mole-rats, clams, meerkats, and mole salamanders, as well as many beetles, wasps, and bees. Prehistoric eviden ..., and little is known about its habitat. It is assumed live in dry savannah and semi-arid habitats. Significant threats to it are unlikely, although livestock grazing, and perhaps fire and droughts, might have an impact. References Pyxicephalus Frogs of Africa Amphibians of Somalia Endemic fauna of Somalia Amphibians described in 1927 Taxonomy articles created by Polbot {{Ranoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Peters
Wilhelm Karl Hartwich (or Hartwig) Peters (22 April 1815 in Koldenbüttel – 20 April 1883) was a German natural history, naturalist and explorer. He was assistant to the anatomist Johannes Peter Müller and later became curator of the Natural History Museum, Berlin, Berlin Zoological Museum. Encouraged by Müller and the explorer Alexander von Humboldt, Peters travelled to Mozambique via Angola in September 1842, exploring the coastal region and the Zambesi River. He returned to Berlin with an enormous collection of natural history specimens, which he then described in ''Naturwissenschaftliche Reise nach Mossambique... in den Jahren 1842 bis 1848 ausgeführt'' (1852–1882). The work was comprehensive in its coverage, dealing with mammals, birds, reptiles, amphibians, river fish, insects and botany. He replaced Martin Lichtenstein as curator of the museum in 1858, and in the same year he was elected a foreign member of the Royal Swedish Academy of Sciences. In a few years, he g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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