|
Velutina Tarasovi
''Velutina'' is a genus of small sea snails, marine gastropod mollusks in the family Velutinidae.WoRMS (2009). ''Velutina'' Fleming, 1822. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138631 on 17 June 2011 Species Species within the genus ''Velutina'' include: *''Velutina coriacea'' ( Pallas, 1788) *'' Velutina cryptospira'' Middendorff, 1848 *''Velutina plicatilis'' (Müller, 1776) *'' Velutina pulchella'' Derjugin, 1950 *'' Velutina schneideri'' Friele, 1886 *'' Velutina tarasovi'' Derjugin, 1950 *''Velutina velutina'' (Müller, 1776) ;Species brought into synonymy : *''Velutina beringensis'' Derjugin, 1950 : synonym of '' Cartilagovelutina beringensis'' (Derjugin, 1950) *''Velutina bifasciata'' Derjugin, 1950 : synonym of '' Limneria undata'' (T. Brown, 1839) *''Velutina canaliculata'' Kröyer, 1847 : synonym of '' Limneria undat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velutina Velutina
''Velutina velutina'', common name the velvet shell, is a species of small sea snail with a transparent shell, a marine gastropod mollusk in the family Velutinidae. Description The maximum body size is from 15 to 50 mm. The maximum recorded shell length is 27.5 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . Distribution The distribution of ''Velutina velutina'' is circumboreal. The range of ''Velutina velutina'' include: 72.78°N to 42°N; 70°W to 0°W. Distribution of ''Velutina velutina'' include: * Greenland: West Greenland. * Canada: Labrador, Nova Scotia, New Brunswick * USA: Maine, Massachusetts, including Cobscook Bay Ecology The habitat of ''Velutina velutina'' include bathyal, infralittoral and circalittoral of the Gulf and estuary. Minimum recorded depth is 0 m. Maximum recorded depth is 183 m. ''Velutina velutina'' feeds on ascidians.Manfred Diehl (1956): ''Die Raubschneck ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velutina Tarasovi
''Velutina'' is a genus of small sea snails, marine gastropod mollusks in the family Velutinidae.WoRMS (2009). ''Velutina'' Fleming, 1822. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138631 on 17 June 2011 Species Species within the genus ''Velutina'' include: *''Velutina coriacea'' ( Pallas, 1788) *'' Velutina cryptospira'' Middendorff, 1848 *''Velutina plicatilis'' (Müller, 1776) *'' Velutina pulchella'' Derjugin, 1950 *'' Velutina schneideri'' Friele, 1886 *'' Velutina tarasovi'' Derjugin, 1950 *''Velutina velutina'' (Müller, 1776) ;Species brought into synonymy : *''Velutina beringensis'' Derjugin, 1950 : synonym of '' Cartilagovelutina beringensis'' (Derjugin, 1950) *''Velutina bifasciata'' Derjugin, 1950 : synonym of '' Limneria undata'' (T. Brown, 1839) *''Velutina canaliculata'' Kröyer, 1847 : synonym of '' Limneria undat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spire (mollusc)
A spire is a part of the coiled shell of molluscs. The spire consists of all of the whorls except for the body whorl. Each spire whorl represents a rotation of 360°. A spire is part of the shell of a snail, a gastropod mollusc, a gastropod shell, and also the whorls of the shell in ammonites, which are fossil shelled cephalopods. In textbook illustrations of gastropod shells, the tradition (with a few exceptions) is to show most shells with the spire uppermost on the page. The spire, when it is not damaged or eroded, includes the protoconch (also called the nuclear whorls or the larval shell), and most of the subsequent teleoconch whorls (also called the postnuclear whorls), which gradually increase in area as they are formed. Thus the spire in most gastropods is pointed, the tip being known as the "apex". The word "spire" is used, in an analogy to a church spire or rock spire, a high, thin, pinnacle. The "spire angle" is the angle, as seen from the apex, at which a spire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epidermis (zoology)
In zoology, the epidermis is an epithelium (sheet of cells) that covers the body of a eumetazoan (animal more complex than a sponge). Eumetazoa have a cavity lined with a similar epithelium, the gastrodermis, which forms a boundary with the epidermis at the mouth. Sponges have no epithelium, and therefore no epidermis or gastrodermis. The epidermis of a more complex invertebrate is just one layer deep, and may be protected by a non-cellular cuticle. The epidermis of a higher vertebrate has many layers, and the outer layers are reinforced with keratin Keratin () is one of a family of structural fibrous proteins also known as ''scleroproteins''. Alpha-keratin (α-keratin) is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, ho ... and then die. References Animal anatomy Epithelium {{animal-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limneria Prolongata
''Limneria'' is a genus of small sea snails, marine gastropod mollusks in the family Velutinidae. Species Species within the genus ''Limneria'' include: *'' Limneria insculpta'' Odhner, 1913 *'' Limneria prolongata'' (Carpenter Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, Shipbuilding, ships, timber bridges, concrete formwork, etc. ..., 1864) *'' Limneria undata'' ( T. Brown, 1839) References External links Hägg R. (1904-1905). Mollusca und Brachiopoda gesammelt von der schwedischen Polarexpedition nach Spitzbergen, dem nordöstlichen Grönland und Jan Mayen im Jahre 1900. Arkiv for Zoologi, 2(2): 1-66 (1904); 2(13): 1-136 (1905) Velutinidae {{Velutinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciliatovelutina Nana
''Ciliatovelutina'' is a genus of small sea snails, marine gastropod mollusks in the family Velutinidae. Species Species within the genus ''Ciliatovelutina'' include: * ''Ciliatovelutina capillata'' (Derjugin, 1950) * ''Ciliatovelutina lanata'' (Derjugin, 1950) * ''Ciliatovelutina lanigera ''Ciliatovelutina lanigera'' is a species of small sea snail, a marine gastropod mollusk in the family Velutinidae. Description They are benthos and are predators, feeding on sessile prey. Distribution The distribution of ''Ciliatovelutina lani ...'' ( Møller, 1842) * '' Ciliatovelutina nana'' (Derjugin, 1950) References Velutinidae {{Velutinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciliatovelutina Lanigera
''Ciliatovelutina lanigera'' is a species of small sea snail, a marine gastropod mollusk in the family Velutinidae. Description They are benthos and are predators, feeding on sessile prey. Distribution The distribution of ''Ciliatovelutina lanigera'' includes: * European waters * North West Atlantic, Canada: Baffin Island Baffin Island (formerly Baffin Land), in the Canadian territory of Nunavut, is the largest island in Canada and the fifth-largest island in the world. Its area is , slightly larger than Spain; its population was 13,039 as of the 2021 Canadia ... References Velutinidae Gastropods described in 1842 {{Velutinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciliatovelutina Lanata
''Ciliatovelutina'' is a genus of small sea snails, marine gastropod mollusks in the family Velutinidae. Species Species within the genus ''Ciliatovelutina'' include: * ''Ciliatovelutina capillata'' (Derjugin, 1950) * '' Ciliatovelutina lanata'' (Derjugin, 1950) * ''Ciliatovelutina lanigera ''Ciliatovelutina lanigera'' is a species of small sea snail, a marine gastropod mollusk in the family Velutinidae. Description They are benthos and are predators, feeding on sessile prey. Distribution The distribution of ''Ciliatovelutina lani ...'' ( Møller, 1842) * '' Ciliatovelutina nana'' (Derjugin, 1950) References Velutinidae {{Velutinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limneria Insculpta
''Limneria insculpta'' is a species of small sea snail, a marine gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ... mollusk in the family Velutinidae. References External links * Velutinidae Gastropods described in 1913 {{Velutinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
