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Ichnotropis Grandiceps
''Ichnotropis grandiceps'' is a species of African lizards in the family Lacertidae. They are commonly called Caprivi rough-scaled lizards as they are largely found in southwestern Africa on the border of the Caprivi Strip. The cape rough-scaled lizards are terrestrial and found in the range of open woodland and mesic savanna. The caprivi rough-scaled lizards are medium in size and distributed in parts of Namibia and Botswana. This species is on the International Union for Conservation of Nature's Red List for endangered species as they are rare and has not been seen or collected since 1998. Data about the population or specimens collected are needed for the IUCN to obtain more information about the unknown threats that may be impacting them. Description ''I. grandiceps'' are medium-sized lizards with slender bodies, long tails, and well developed legs. They are very similar to the type species ''Ichnotropis capensis'', except ''I. grandiceps'' have larger heads. These lizar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald George Broadley
Donald George Broadley (1932–2016) was an African herpetologist. He described as new to science 115 species and subspecies, and 8 genera and subgenera of reptiles. He was one of the founders of the Herpetological Association of Africa (initially the Herpetological Association of Rhodesia). He earned his doctorate at the University of Natal The University of Natal was a university in the former South African province Natal which later became KwaZulu-Natal. The University of Natal no longer exists as a distinct legal entity, as it was incorporated into the University of KwaZulu-N ... in 1966.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . ("Broadley", p. 39). His widow, Sheila Broadley, is also a herpetologist. Legacy Broadley is commemorated in the scientific names of eight species of reptiles: '' Afroedura broadleyi'', '' Atheris broadleyi'', '' Elapsoidea broadleyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subocular
In scaled reptiles, the ocular scales are those forming the margin of the eye.Wright AH, Wright AA. 1957. ''Handbook of Snakes''. Comstock Publishing Associates (7th printing, 1985). 1105 pp. . The name originates from the term ''oculus'' which is Latin for 'eye' and, in the broadest sense, refers to a scale associated with the eye. The numbers of these scales present, and sometimes the shapes and sizes, are some of many characteristics used to differentiate species from one another. Prefixes are usually included to indicate the positions or locations of the individual scales:Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. 359 pp. .Smith MA. 1943. ''The Fauna of British India, Ceylon and Burma including the whole of the Indo-Chinese Sub-region, Reptilia and Amphibia Vol III-Serpentes''. Taylor and Francis, London. page 29. * Preocular scales, or preoculars, are those lying direc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Namibia
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated around 31 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Botswana
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates ( lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizards Of Africa
Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia although some lizards are more closely related to these two excluded groups than they are to other lizards. Lizards range in size from chameleons and geckos a few centimeters long to the 3-meter-long Komodo dragon. Most lizards are quadrupedal, running with a strong side-to-side motion. Some lineages (known as "legless lizards"), have secondarily lost their legs, and have long snake-like bodies. Some such as the forest-dwelling ''Draco'' lizards are able to glide. They are often territorial, the males fighting off other males and signalling, often with bright colours, to attract mates and to intimidate rivals. Lizards are mainly carnivorous, often being sit-and-wait predators; many smaller species eat insects, while the Komodo eats mammals as bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichnotropis
''Ichnotropis'' is a genus of African lizards in the family Lacertidae. Species in the genus ''Ichnotropis'' are commonly called rough-scaled lizards."''Ichnotropis'' ". The Reptile Database. www.reptile-database.org. Species The following six species are recognized as being valid. *'' Ichnotropis bivittata'' Bocage, 1866 - Angolan rough-scaled lizard *'' Ichnotropis capensis'' ( A. Smith, 1838) - Cape rough-scaled lizard, ornate rough-scaled lizard, Smith's rough-scaled sand lizard *'' Ichnotropis chapini'' K.P. Schmidt, 1919 *'' Ichnotropis grandiceps'' Broadley, 1967 - Caprivi rough-scaled lizard *'' Ichnotropis microlepidota'' Marx, 1956 - Marx's rough-scaled lizard *'' Ichnotropis tanganicana'' Boulenger, 1917 - Tanzanian rough-scaled lizard, ''Nota bene'': A binomial authority in parentheses indicates that the species was originally described in a genus other than ''Ichnotropis''. References Further reading * Boulenger GA (1887). ''Catalogue of the Lizards in the Bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligocene
The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek (''olígos'', "few") and (''kainós'', "new"), and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period. The Oligocene is often considered an important time of transition, a link between the archaic world of the tropical Eocene and the more modern ecosystems of the Miocene. Major changes during the Oligocene included a global expansion o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lacerta Lepida
The ocellated lizard or jewelled lizard (''Timon lepidus'') is a species of lizard in the family Lacertidae (wall lizards). The species is endemic to southwestern Europe. Common names Additional common names for ''T. lepidus'' include eyed lizard, and jeweled lacerta (in the pet trade), Description ''Timon lepidus'' is one of the largest members of its family. The adult is in total length (including tail) and may reach up to , weighing more than . About two-thirds of its length is tail. Newly hatched young are long, excluding tail. This is a robust lizard with a serrated collar. The male has a characteristic broad head. It has thick, strong legs, with long, curved claws. The dorsal background colour is usually green, but sometimes grey or brownish, especially on the head and tail. This is overlaid with black stippling that may form a bold pattern of interconnected rosettes. The underside is yellowish or greenish with both the male and female sporting bright blue spots along t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psammodromus
''Psammodromus'' is a small genus of sand lizards of the family ''Lacertidae''. It has six described species, which are found in European and North African countries next to the Mediterranean. Species The following species are recognized as being valid."''Psammodromus'' ". The Reptile Database. www.reptile-database.org. *'' Psammodromus algirus'' - large psammodromus, Algerian psammodromus, Algerian sand racer *''Psammodromus blanci'' - Blanc's sand racer, Blanc's psammodromus *''Psammodromus edwarsianus'' - East Iberian sand racer, East Iberian psammodromus *''Psammodromus hispanicus'' – Spanish psammodromus *''Psammodromus manuelae'' *''Psammodromus microdactylus'' – small-fingered psammodromus, green psammodromus *''Psammodromus occidentalis'' ''Nota bene'': A binomial authority in parentheses indicates that the species was originally described in a genus other than ''Psammodromus''. References Further reading * Boulenger GA (1887). '' Catalogue of the Lizards i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insectivorous
A robber fly eating a hoverfly An insectivore is a carnivorous animal or plant that eats insects. An alternative term is entomophage, which can also refer to the human practice of eating insects. The first vertebrate insectivores were amphibians. When they evolved 400 million years ago, the first amphibians were piscivores, with numerous sharp conical teeth, much like a modern crocodile. The same tooth arrangement is however also suited for eating animals with exoskeletons, thus the ability to eat insects is an extension of piscivory. At one time, insectivorous mammals were scientifically classified in an order called Insectivora. This order is now abandoned, as not all insectivorous mammals are closely related. Most of the Insectivora taxa have been reclassified; those that have not yet been reclassified and found to be truly related to each other remain in the order Eulipotyphla. Although individually small, insects exist in enormous numbers. Insects make up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keeled Scales
Keeled scales refer to reptile scales that, rather than being smooth, have a ridge down the center that may or may not extend to the tip of the scale, Campbell, J. A., Lamar, W. W. (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publishing Associates. 870 pp. 1,500 plates. . making them rough to the touch. According to Street's (1979) description of European lizards and snakes, in those that have keeled scales the keels are usually stronger in male specimens and are consistently arranged according to the species of reptiles, even though many others do not have them. With European lizards, the dorsal scales are usually well keeled, while those on the flanks are more weakly keeled and those on the belly smooth. Street, D. (1979). ''The Reptiles of Northern and Central Europe''. London: B.T. Batsford Ltd. 268 pp. . Non-European lizards such as ''Sphaerodactylus macrolepis'' also display keeled scales. Klauber (1997), describes how the keels on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamella (anatomy)
Lamellae on a gecko's foot. In surface anatomy, a lamella is a thin plate-like structure, often one amongst many lamellae very close to one another, with open space between. Aside from respiratory organs, they appear in other biological roles including filter feeding and the traction surfaces of geckos. In fish, gill lamellae are used to increase the surface area in contact with the environment to maximize gas exchange (both to attain oxygen and to expel carbon dioxide) between the water and the blood. In fish gills there are two types of lamellae, primary and secondary. The primary gill lamellae (also called gill filament) extends from the gill arch, and the secondary gill lamellae extends from the primary gill lamellae. Gas exchange primarily occurs at the secondary gill lamellae, where the tissue is notably only one cell layer thick. Furthermore, countercurrent gas exchange at the secondary gill lamellae further maximizes oxygen uptake and carbon dioxide release. See al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
