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Melloconcha Delecta
''Melloconcha'' is a genus of six species of tiny glass-snails that are endemism, endemic to Australia's Lord Howe Island in the Tasman Sea. Species * ''Melloconcha delecta'' Iredale, 1944 – tiny amber glass-snail * ''Melloconcha flavescens'' (Iredale, 1944) – tiny yellow glass-snail * ''Melloconcha grata'' Iredale, 1944 – angulate glass-snail * ''Melloconcha miranda'' (Iredale, 1944) – Miranda's glass-snail * ''Melloconcha prensa'' Iredale, 1944 – flattened glass-snail * ''Melloconcha rosacea'' (Iredale, 1944) – tiny rosy glass-snail References * Melloconcha, Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Euconulidae-stub ... [...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] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord Howe Island
Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland Port Macquarie, northeast of Sydney, and about southwest of Norfolk Island. It is about long and between wide with an area of , though just of that comprise the low-lying developed part of the island. The island is named after Richard Howe, 1st Earl Howe. Along the west coast is a sandy semi-enclosed sheltered coral reef lagoon. Most of the population lives in the north, while the south is dominated by forested hills rising to the highest point on the island, Mount Gower (). The Lord Howe Island Group comprises 28 islands, islets, and rocks. Apart from Lord Howe Island itself, the most notable of these is the volcanic and uninhabited Ball's Pyramid about to the southeast of Howe. To the north lies the Admiralty Group, a cluster of seven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasman Sea
The Tasman Sea is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abel Janszoon Tasman, who in 1642 was the first known person to cross it. British explorer Lieutenant James Cook later extensively navigated the Tasman Sea in the 1770s during his three voyages of exploration. The Māori people of New Zealand call this sea ''Te Moana-a-Rehua'' meaning 'the sea of Rehua' which clashes with the Pacific waters named ''Te Tai-o-Whitirea'' ('the sea of Whitirea') – after Whitirea, Rehua's lover – at Cape Reinga, the northernmost tip of North Island. Climate The south of the sea is passed over by depressions going from west to east. The northern limit of these westerly winds is near to 40th parallel south, 40°S. During the southern winter, from April to October, the northern branch of these winds from the west changes its direction toward th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Delecta
''Melloconcha'' is a genus of six species of tiny glass-snails that are endemism, endemic to Australia's Lord Howe Island in the Tasman Sea. Species * ''Melloconcha delecta'' Iredale, 1944 – tiny amber glass-snail * ''Melloconcha flavescens'' (Iredale, 1944) – tiny yellow glass-snail * ''Melloconcha grata'' Iredale, 1944 – angulate glass-snail * ''Melloconcha miranda'' (Iredale, 1944) – Miranda's glass-snail * ''Melloconcha prensa'' Iredale, 1944 – flattened glass-snail * ''Melloconcha rosacea'' (Iredale, 1944) – tiny rosy glass-snail References * Melloconcha, Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Euconulidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Flavescens
''Melloconcha flavescens'', also known as the tiny yellow glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Description The discoidal shell of the mature snail is 2.7–3.6 mm in height, with a diameter of 5–6.5 mm, and a low spire. It is smooth, glossy and golden-brown in colour The whorls are flattened above and rounded below, with a slightly angulate periphery and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. The animal is cream, with dark grey neck, head and eyestalks, often with red, orange or yellow colouration at the end of the tail. Distribution and habitat The snail is widespread across the island in rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Grata
''Melloconcha grata'', also known as the angulate glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Description The trochoidal shell of the mature snail is 4.5 mm in height, with a diameter of 6.6 mm, and an elevated spire. It is smooth, glossy and golden-brown in colour The whorls are flattened above and rounded below with an angulate periphery, weakly impressed sutures and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. Distribution and habitat The snail is known only from the summit, and possibly upper slopes, of Mount Gower Mount Gower (also known as Big Hill), is the highest mountain on Australia's subtropical Lord Howe Island in the Tasman Sea. With a height of above sea level, and a relatively flat summit plateau, it stands at the southern end of Lord Howe, jus .... It is rare and may be extinct. References * grata Gastropods of Lord Howe Island Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Miranda
''Melloconcha miranda'', also known as the Miranda's glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Taxonomy The species is sometimes placed in the monotypic genus ''Annacharis'' because of its distinctive channelled sutures. Description The discoidal shell of the mature snail is 3.7 mm in height, with a diameter of 6.7 mm, and a low spire. It is smooth, glossy and pale golden in colour The whorls are rounded, with deeply channelled sutures and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. The animal is unknown. Distribution and habitat The snail is only known from a single empty shell collected from the summit of Mount Gower in 1913. It is evidently very rare and may be extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last mem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Prensa
''Melloconcha prensa'', also known as the flattened glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Description The discoidal shell of the mature snail is 3.7–4.5 mm in height, with a diameter of 6.8–8 mm, and a low spire. It is smooth, glossy and pale golden-brown in colour The whorls are rounded, with finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. Distribution and habitat This uncommon snail occurs on the slopes and summits of the southern mountains, where it inhabits rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ... and moist woodland, in litter and in the axils between the stems and trunks of palms. References * prensa Gastropods of Lord H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Rosacea
''Melloconcha'' is a genus of six species of tiny glass-snails that are endemic to Australia's Lord Howe Island in the Tasman Sea The Tasman Sea is a marginal sea of the South Pacific Ocean, situated between Australia and New Zealand. It measures about across and about from north to south. The sea was named after the Dutch explorer Abel Janszoon Tasman, who in 1642 wa .... Species * '' Melloconcha delecta'' Iredale, 1944 – tiny amber glass-snail * '' Melloconcha flavescens'' (Iredale, 1944) – tiny yellow glass-snail * '' Melloconcha grata'' Iredale, 1944 – angulate glass-snail * '' Melloconcha miranda'' (Iredale, 1944) – Miranda's glass-snail * '' Melloconcha prensa'' Iredale, 1944 – flattened glass-snail * '' Melloconcha rosacea'' (Iredale, 1944) – tiny rosy glass-snail References * Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Euconulidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
