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Melloconcha
''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 ( Māori: ''Te Tai-o-Rēhua'', ) 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 .... 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] |
Melloconcha Delecta
''Melloconcha delecta'', also known as the tiny amber glass-snail, is a species of land snail that is endemic to Australia's Lord Howe Island in the Tasman Sea. Description The domed shell of the mature snail is 3.7–4.5 mm in height, with a diameter of 5.3–5.9 mm. It is smooth, glossy and transparent amber in colour The whorls are rounded, with slightly impressed sutures and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus Umbilicus may refer to: *The navel or belly button *Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy * ''Umbilicus'' (plant), a genus of over ninety species of perennial flowering plants *Umbilicus urbis Romae The .... The animal is grey to black. Distribution and habitat The snail is widespread across the island, including the summits and upper slopes of the southern mountains. References * delecta Gastropods of Lord Howe Island Taxa named by Tom Iredale G ... [...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 characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfo . ... [...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, ju .... It is rare and may be extinct. References * grata Gastropods of Lord Howe Island ... [...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 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 ... [...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 characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfo ... and moist woodland, in litter and in the axils between the stems and trunks of palms. References * prensa Gastropods of Lord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melloconcha Rosacea
''Melloconcha rosacea'', also known as the tiny rosy 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 1.8–2.1 mm in height, with a diameter of 3.7–4.1 mm, and a flat or slightly raised spire. It is smooth, glossy and dark amber-brown in colour in live animals, the empty shell being golden-brown. The whorls are rounded, with flat sutures and finely incised spiral grooves. It has an ovately lunate aperture and closed umbilicus. The animal is dark grey with darker eyestalks. Distribution and habitat The snail has a patchy distribution across the island and is found in leaf litter and the axils of palms. References * rosacea Rosacea is a long-term skin condition that typically affects the face. It results in redness, pimples, swelling, and small and superficial dilated blood vessels. Often, the nose, cheeks, forehead, and chin are mo ... [...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 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, 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 and Christchurch. On his second day in Christchurch, he discovered that in the Foreign Natural Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. 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 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. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a sovereign ''Sovereign'' is a title which can be applied to the highest leader in various categories. The word is borrowed from Old French , which is ultimately derived from the Latin , meaning 'above'. The roles of a sovereign vary from monarch, ruler or ... country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates, with deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approx ... [...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. 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 a cluster of seven small uninhabited islands called the Admiralty Group. The first reporte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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