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Roblinella
''Roblinella'' is a monotypic genus of small land snails in the family Charopidae. The sole species is ''Roblinella roblini'', also known as Roblin's pinwheel snail. It is endemic to Tasmania. Other species formerly included in ''Roblinella'' have been transferred to other genera. However, Bonham (2007) pointed to existence of other, undescribed species that could be ''Roblinella roblinis closest relatives. Distribution and habitat ''Roblinella roblini'' is known only from near Launceston, Tasmania. It is known from two localities about 30 km apart and is scarce at both. Surveys in the area did not reveal other populations. Specimens have been collected under/on dolerite rocks and in leaf litter in mid-slope scrub along a creek and in a gully under a fern. Description ''Roblinella roblini'' is a small, white snail. Adults of 4.15–4.5 whorls measure in diameter, with historic records up to . The spire is flat or slightly raised. The ratio of shell height to diameter ranges fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charopidae
Charopidae is a Taxonomy (biology), taxonomic family (biology), family of small air-breathing land snails (and semi-slugs such as ''Otoconcha dimidiata''), terrestrial molluscs, terrestrial pulmonate gastropod mollusks in the superfamily Punctoidea.MolluscaBase eds. (2021). MolluscaBase. Charopidae Hutton, 1884. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=816165 on 12 February 2021 Taxonomy The following genera are recognised in the family Charopidae: Subfamily Charopinae * ''Acanthoptyx'' Ancey, 1888 * ''Acheronopa'' Hyman & Stanisic, 2005 * ''Aeschrodomus'' Pilsbry, 1892 * ''Albiropa'' Holcroft & Stanisic, 2018 * ''Allocharopa'' Iredale, 1937 * ''Amfractaropa'' Holcroft, 2018 * ''Andrefrancia'' Solem, 1960 * ''Annoselix'' Iredale, 1939 * ''Ba (gastropod), Ba'' Solem, 1983 - with the only species ''Ba humbugi'' * ''Barringtonica'' Shea, Colgan & Stanisic, 2012 * ''Biomphalopa'' Stanisic, 1990 * ''Bischoffena'' I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Iredale
Tom Iredale (24 March 1880 – 12 April 1972) was an English-born ornithologist and malacologist who had a long association with Australia, where he lived for most of his life. He was an Autodidacticism, autodidact who never went to university and lacked formal training. This was reflected in his later work; he never revised his manuscripts and never used a typewriter. Early life Iredale was born at Stainburn, Cumbria, Stainburn, Workington in Cumberland, England. He was apprenticed to a pharmacist from 1899 to 1901, and used to go bird watching and egg collecting in the Lake District with fellow chemist William Carruthers Lawrie. New Zealand Iredale emigrated to New Zealand following medical advice, as he had health issues. He may possibly have had tuberculosis. According to a letter to Will Lawrie dated 25 January 1902, he arrived in Wellington, New Zealand in December 1901, and travelled at once on to Lyttelton, New Zealand, Lyttelton and Christchurch. On his second day in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invertebrates Of Tasmania
Invertebrates are animals that neither develop nor retain a vertebral column (commonly known as a ''spine'' or ''backbone''), which evolved from the notochord. It is a paraphyletic grouping including all animals excluding the chordate subphylum Vertebrata, i.e. vertebrates. Well-known phyla of invertebrates include arthropods, molluscs, annelids, echinoderms, flatworms, cnidarians, and sponges. The majority of animal species are invertebrates; one estimate puts the figure at 97%. Many invertebrate taxa have a greater number and diversity of species than the entire subphylum of Vertebrata. Invertebrates vary widely in size, from 10 μm (0.0004 in) myxozoans to the 9–10 m (30–33 ft) colossal squid. Some so-called invertebrates, such as the Tunicata and Cephalochordata, are actually sister chordate subphyla to Vertebrata, being more closely related to vertebrates than to other invertebrates. This makes the "invertebrates" paraphyletic, so the term has no signifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropods Of Australia
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. It contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Gastropod Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of Genus, genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Articles Created By Polbot
280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation of things to the classes (classification). Originally, taxonomy referred only to the classification of organisms on the basis of shared characteristics. Today it also has a more general sense. It may refer to the classification of things or concepts, as well as to the principles underlying such work. Thus a taxonomy can be used to organize species, documents, videos or anything else. A taxonomy organizes taxonomic units known as "taxa" (singular "taxon"). Many are hierarchies. One function of a taxonomy is to help users more easily find what they are searching for. This may be effected in ways that include a library classification system and a search engine taxonomy. Etymology The word was coined in 1813 by the Swiss botanist A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolerite
Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). ''Diabase'' is the preferred name in North America, while ''dolerite'' is the preferred name in the rest of the English-speaking world, where sometimes the name ''diabase'' refers to altered dolerites and basalts. Some geologists prefer to avoid confusion by using the name ''microgabbro''. The name ''diabase'' comes from the French , and ultimately from the Greek 'act of crossing over, transition', whereas the name ''dolerite'' comes from the French , from the Greek 'deceitful, deceptive', because it was easily confused with diorite. Petrography Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protoconch
A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called "nucleus". The protoconch may sometimes consist of several whorl (mollusc), whorls, but when this is the case, the whorls show no growth lines. The whorls of the adult shell, which are formed after the protoconch, are known as the teleoconch. The teleoconch starts forming when the larval gastropod becomes a juvenile, and the protoconch may dissolve. Quite often there is a visible line of demarcation where the protoconch ends and the teleoconch begins, and there may be a noticeable change in Sculpture (mollusc), sculpture, or a sudden appearance of sculpture at that point. In some gastropod groups (such as the Architectonicidae), the teleoconch whorls spiral in the opposite direction to the protoconch. In those cases, the shell is called ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Frederick Petterd
William Frederick Petterd was a Tasmanian scientist and boot importer. He was born in Hobart in 1849, and died in Launceston in 1910. His first book, ''A Monograph of the land shells of Tasmania'', was the result of a talk to the Royal Society of Tasmania on 12 November 1878. Petterd described Dundasite in 1893. He wrote the ''Catalogue of the minerals of Tasmania'', which was published in 1893, and updated the catalogue in 1909, the year before his death. He was joint author of articles and books with William Harper Twelvetrees. He was a rock and mineral collector, and when he died "His mineral collection, valued at £1212, was placed in charge of the Royal Society of Tasmania on loan for 999 years."'Petterd, William Frederick (1849–1910)', Australian Dictionary of Biography The ''Australian Dictionary of Biography'' (ADB or AuDB) is a national co-operative enterprise founded and maintained by the Australian National University (ANU) to produce authoritative bio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launceston, Tasmania
Launceston () is a city in the north of Tasmania, Australia, at the confluence of the North Esk River, North Esk and South Esk River, South Esk rivers where they become the Tamar River, Tasmania, Tamar River (kanamaluka). As of 2021, the Launceston urban area has a population of 90,953. Material was copied from this source, which is available under Creative Commons Attribution 4.0 International License/ref> Launceston is the second most populous city in Tasmania after the state capital, Hobart. As of 2020, Launceston is the 18th largest city in Australia. Launceston is the fifth-largest inland city and the ninth-largest non-capital city in Australia. Launceston is regarded as the most livable regional city, and was one of the most popular regional cities to move to in Australia from 2020 to 2021. Launceston was named Australian Town of the Year in 2022. Settled by Europeans in March 1806, Launceston is one of Australia's oldest cities and it has many historic buildings. Like ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
