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Punctidae
Punctidae, common name the "dot snails" or "pinhead snails", is a family of minute air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the informal group Sigmurethra (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Genera The family Punctidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). The family Punctidae includes the following genera: * ''Allenella'' Iredale, 1944 * ''Charopinesta'' Iredale, 1944 * ''Dignamoconcha'' Iredale, 1944 * ''Goweriana'' Shea & Griffiths, 2010 * ''Paralaoma'' Iredale, 1913 * ''Pernastela'' Iredale, 1944 * '' Phrixgnathus'' Hutton, 1882 * '' Punctum'' Morse, 1864 * ''Semilaoma ''Semilaoma'' is a genus of three pinhead or dot snail species 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 betw ...'' Iredale, 1944 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum Pygmaeum
''Punctum pygmaeum'' is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails. Shell description For terms see gastropod shell. The shell is very small, 1.2-1.6 mm in width. The 0.6-0.8 x 1.2-1.6 mm shell is almost flat, extremely densely and regularly striated, appearing silky shiny light horny brown. There are 3-3.5 moderately convex whorls, the aperture is rounded, with a thin margin which is not reflected and without a lip. The umbilicus is wide (25% of shell diameter). Habitat These gastropods are commonly found in damp, dim, and undisturbed areas including the margins or wetlands, wet woodland, and leaf-littered forests. They may also live in mossy suburban gardens. They commonly lay their eggs underneath damp soil or rocks.Bard, Bruno, (1989). GROWTH AND REPRODUCTION OF THE MINUTE LAND SNAIL ''PUNCTUM PYGMAEUM'/ref> Distribution This species occurs in countries and island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum Minutissimum
''Punctum minutissimum'' is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Punctidae, the dot snails. Shell description The shell of ''Punctum minutissimum'' is slightly translucent and pale brown in color. It is 1.1 to 1.3 mm wide, and has 3.5 to 4.5 whorls. The outer shell surface has a sculpture of radial striae, which are obvious under magnification. The underside of the shell has a very wide umbilicus, almost 25% of the shell's width. Distribution This species occurs in North America, from Maine to Florida, and west to Oregon and New Mexico. Habitat This small snail lives in damp leaf litter and decaying fallen beech logs. It is often found around polypore and bolete {{refimprove, date=July 2020 A bolete is a type of mushroom, or fungal fruiting body. It can be identified thanks to a unique mushroom cap. The cap is clearly different from the stem. On the underside of the cap there is usually a sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punctum (gastropod)
''Punctum'' is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Punctinae of the family Punctidae, the dot snails. MolluscaBase eds. (2022). MolluscaBase. Punctum Morse, 1864. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=866756 on 2022-03-03 Distribution This genus is found throughout the Holarctic ecozone, and also in South Africa and Mexico. Species The genus ''Punctum'' includes the following species: The type species is ''Helix minutissima'' Lea, 1841 * '' Punctum abbadianum'' (Bourguignat, 1883) * '' Punctum adami'' Bruggen & Goethem, 2001 * † '' Punctum alveus'' Pierce, 1992 * '' Punctum amblygonum'' (Reinhardt, 1877) * '' Punctum apertum'' Pilsbry & Y. Hirase, 1904 * '' Punctum atomus'' Pilsbry & Hirase, 1904 * '' Punctum azoricum'' De Winter, 1988 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paralaoma
''Paralaoma'' is a genus of very small air-breathing land snails, terrestrial pulmonate gastropod mollusks or micromollusks in the subfamily Laominae of the family Punctidae, the dot snails. Species The genus ''Paralaoma'' includes the following species: * '' Paralaoma ahena'' Iredale, 1945 * '' Paralaoma allochroida'' (Suter, 1890) * '' Paralaoma ambigua'' Iredale, 1913 * '' Paralaoma angusta'' Vermeulen, Liew & Schilthuizen, 2015 * '' Paralaoma annabelli'' Shea & Griffiths, 2010 * '' Paralaoma buddlei'' Powell, 1951 * '' Paralaoma burringtoni'' (Pilsbry, 1930) * '' Paralaoma coloba'' (Pilsbry, 1894) * '' Paralaoma compar'' Iredale, 1944 * '' Paralaoma depressior'' Preston, 1913 * '' Paralaoma gelida'' Iredale, 1941 * '' Paralaoma goweri'' Iredale, 1944 * '' Paralaoma hottentota'' (Melvill & Ponsonby, 1891) * '' Paralaoma innesi'' Iredale, 1944 * '' Paralaoma insularis'' (Cotton, 1939) * '' Paralaoma lateumbilicata'' (Suter, 1890) * '' Paralaoma manawatawhia'' Goulstone & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goweriana
''Goweriana'' is a monotypic genus of pinhead or dot snails that is endemic to Australia's Lord Howe Island in the Tasman Sea. Species * ''Goweriana berniceae'' Shea & Griffiths, 2010 – Bernice's pinhead snail Description The shells of this very rare species are fragile and broken easily, making it difficult ti find entire adult shells to measure. The globose shell of a subadult had a diameter of 3.5 mm, with a flat spire, and was transparent golden-brown in colour. The sutures are impressed and the whorls rounded, with moderately spaced, bladed radial ribs. The aperture is roundly lunate with a closed umbilicus. The animal is unknown. Distribution and habitat The main area of occurrence of the snail is on the upper slopes of Mount Gower, living in rain forest plant litter Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dignamoconcha
''Dignamoconcha'' is a monotypic genus of pinhead or dot snails that is 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 * '' Dignamoconcha dulcissima'' Iredale, 1944 – the pagoda pinhead snail Description The trochoidal shell of the mature snail is 3.3 mm in height, with a diameter of 5.7 mm, with a stepped, pagoda-like spire. It is pale golden-brown in colour, with white radial streaks. The whorl profile is flattened above and below a strongly keeled periphery. It has a diamond-shaped aperture and widely open umbilicus. It is the largest known punctid in Australia. Distribution and habitat Although the snail is sometimes reported from other sites on the island, its main area of occurrence is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigmurethra
Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This is an informal group which includes most land snails and slugs. The two strong synapomorphies of Sigmurethra are a long pedal gland placed beneath a membrane and retractile tentacles. Several families in this group contain species of snails and slugs that create love darts. Sigmurethra are known from the Cretaceous to the Recent periods. Taxonomy 2005 Taxonomy In the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, Sigmurethra is an "Informal Group", a subsection of the Stylommatophora.Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 It consists of the following families: *Superfami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pernastela
''Pernastela'' is a genus of three pinhead or dot snail species that are endemic to Australia's Lord Howe Island in the Tasman Sea. Species * ''Pernastela charon'' Iredale, 1944 – lowland forest pinhead snail * ''Pernastela gnoma'' Iredale, 1944 – dwarf pinhead snail * ''Pernastela howensis ''Pernastela howensis'', also known as the Lord Howe pinhead snail, is a tiny 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 1.8–2.1 mm in ...'' Iredale, 1944 – Lord Howe pinhead snail References * Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Punctidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charopinesta
''Charopinesta'' is a genus of three species of tiny pinhead or dot 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 * '' Charopinesta goweri'' Iredale, 1944 – Mount Gower pinhead snail * '' Charopinesta sema'' Iredale, 1944 – Blackburn Island pinhead snail * '' Charopinesta suavis'' Iredale, 1944 – sweet pinhead snail References * Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Punctidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allenella
''Allenella'' is a genus of three species of tiny pinhead or dot snails that are endemic to Australia's Lord Howe Island in the Tasman Sea. The genus was first described in 1944 by 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 forma .... Species * '' Allenella belli'' Iredale, 1944 – beautiful pinhead snail * '' Allenella formalis'' Iredale, 1944 – brown turban pinhead snail * '' Allenella planorum'' Iredale, 1944 – angular pinhead snail References * Gastropod genera Taxa named by Tom Iredale Gastropods described in 1944 Gastropods of Lord Howe Island {{Punctidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Of The Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised in 2005 by Philippe Bouchet and Jean-Pierre Rocroi is a system for the scientific classification of gastropod mollusks. (Gastropods are a taxonomic class of animals which consists of snails and slugs of every kind, from the land, from freshwater, and from saltwater.) The paper setting out this taxonomy was published in the journal ''Malacologia''. The system encompasses both living and extinct groups, as well as some fossils whose classification as gastropods is uncertain. The Bouchet & Rocroi system was the first complete gastropod taxonomy that primarily employed the concept of clades, and was derived from research on molecular phylogenetics; in this context a clade is a "natural grouping" of organisms based upon a statistical cluster analysis. In contrast, most of the previous overall taxonomic schemes for gastropods relied on morphological features to classify these animals, and used taxon ranks such as order, superorder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also reach adult size at very small dimensions. These tiny mollusks or their tiny shells are easy to overlook, as many of them are not very noticeable to the naked eye, and thus many people are not aware that they even exist. Nonetheless there are large numbers of families and vast numbers of mollusk species, in particular marine gastropods or sea snails, which are minute enough to be considered micromollusks. Considerable numbers of marine gastropod species are only about 5 or 6 mm in adult size; many others are only about 2 or 3 mm in adult size; and a few have adult shells which are as small as one millimeter or even smaller still. Despite their tiny size, many of the shells have a good deal of elaborate sculpture. A fair number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
