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Zemaciinae
Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153870 on 2011-08-12Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". ''Malacologia'' 47(1-2). . 397 pp. In 2011, Bouchet, Kantor ''et al''. brought genera from the subfamilies Clathurellinae and Raphitominae they were previously placed in the family Conidae), as well as genera from the subfamily Zemaciinae (at that point belonging to the family Turridae), together to form the family Borsoniidae. This re-arrangement was based on anatomical characters and a dataset of molecular sequences of three gene fragments Description This family is a rather heterogenous group, with wide-ranging varieties in their properties. The medium- to large-sized shells are fusiform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zemaciinae
Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=153870 on 2011-08-12Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". ''Malacologia'' 47(1-2). . 397 pp. In 2011, Bouchet, Kantor ''et al''. brought genera from the subfamilies Clathurellinae and Raphitominae they were previously placed in the family Conidae), as well as genera from the subfamily Zemaciinae (at that point belonging to the family Turridae), together to form the family Borsoniidae. This re-arrangement was based on anatomical characters and a dataset of molecular sequences of three gene fragments Description This family is a rather heterogenous group, with wide-ranging varieties in their properties. The medium- to large-sized shells are fusiform ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turridae
Turridae is a taxonomic family name for a number of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=152 on 2018-07-22 The family name Turridae was originally given to a very large group of several thousand sea snail species that were thought to be closely related. The family was described with about 700 genus-group taxa and an estimated 10,000 recent and fossil species. However, that original grouping was discovered to be polyphyletic. In recent years, the family Turridae has been much reduced in size, because a number of other families were created to contain the monophyletic lineages that had previously been thought to belong in the same family. The common name ''turrids'' is still used informally to refer to the polyphyletic group. Distribution Species in the family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conoidea
Conoidea is a superfamily of predatory sea snails, marine gastropod mollusks within the suborder Hypsogastropoda. This superfamily is a very large group of marine mollusks, estimated at about 340 recent valid genera and subgenera, and considered by one authority to contain 4,000 named living species. This superfamily includes the turrids, the terebras (also known as auger snails or auger shells) and the cones or cone snails. The phylogenetic relationships within this superfamily are poorly established. Several families (especially the Turridae), subfamilies and genera are thought to be polyphyletic. In contrast to Puillandre's estimate, Bandyopadhyay et al. (2008) estimated that the superfamily Conoidea contains about 10,000 species. Tucker (2004) even speaks of 11,350 species in the group of taxa commonly referred to as turrids.Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda).'' Zootaxa 682:1–1295. 3000 recent taxa are potentially valid specie ... [...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] |
Zemacies
''Zemacies'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.o ... Most species in this genus are extinct. Their age range is 55.8 to 11.608 Ma. Species Species within the genus ''Zemacies'' include: * † '' Zemacies armata'' Powell, 1942 * † '' Zemacies awakinoensis'' Powell, 1942 * † '' Zemacies climacota'' (Suter, 1917) * † '' Zemacies elatior'' Finlay, 1926 * '' Zemacies excelsa'' Sysoev & Bouchet, 2001 * † '' Zemacies hamiltoni'' (Hutton, 1905) * † '' Zemacies immatura'' Finlay & Marwick, 1937 * † '' Zemacies laciniata'' (Suter, 1917) * † '' Zemacies lividorupis'' Laws, 1935 * † '' Zemacies marginalis'' (P. Marshall, 1919) * † '' Zemacies ordinaria'' (P. Marshall, 1918) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonal Canal
The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is drawn into the mantle cavity and over the gill and which serves as a chemoreceptor to locate food. Siphonal canals allow for active transport of water to sensory organs inside the shell. Organisms without siphonal canals in their shells rely on passive or diffuse transport or water into their shell. Those with siphonal canals have a direct inhalant stream of water that interacts with sensory organs to detect concentration and direction of a stimulus, such as food or mates. In certain groups of carnivorous snails, where the siphon is particularly long, the structure of the shell has been modified in order to house and protect the soft structure of the siphon. Thus the siphonal canal is a semi-tubular extension of the aperture of the shell th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
The operculum (; ) is a corneous or calcareous anatomical structure like a trapdoor that exists in many (but not all) groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc. The operculum is attached to the upper surface of the foot and in its most complete state, it serves as a sort of "trapdoor" to close the aperture of the shell when the soft parts of the animal are retracted. The shape of the operculum varies greatly from one family of gastropods to another. It is fairly often circular, or more or less oval in shape. In species where the operculum fits snugly, its outline corresponds exactly to the shape of the aperture of the shell and it serves to seal the entrance of the shell. Many families have opercula that are reduced in size, and which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus. The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, which instead use cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs. The arrangement of teeth ( denticles) on the radular ribbon varies considerably from one group to another. In most of the more ancient lineages of gastropods, the radula is used to graze, by scraping diatoms and other microscopic algae off rock surfaces and other substrates. Predatory marine snails such as the Naticidae use the radula plus an acidic secretion to bore through the shell of other molluscs. Other predatory marine snails ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apaturris
''Apaturris'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.Rosenberg, G.; Bouchet, P. (2012). Apaturris. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=435295 on 2012-06-28 Species in this genus have a relatively deep anal sinus. Species Species within the genus ''Apaturris'' include: * ''Apaturris costifera'' May, 1920 * '' Apaturris expeditionis'' (Oliver, 1915) ;Species brought into synonymy: * ''Apaturris brazieri'' Hedley, C. 1918: synonym of ''Scrinium brazieri ''Scrinium brazieri'' is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.MolluscaBase (2018). Scrinium brazieri (E. A. Smith, 1892). Accessed through: World Register of Marine Species at: http://www.marinespecies. ...'' (Smith, 1891) Hedley, C. 1918. A checklist of the marine fauna of New South Wales. Part 1. Journal and Proceedings of the Royal Society of New South Wales 51: M1-M120 Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctospira
''Antarctospira'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae Borsoniidae is a monophyletic family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet, P. (2011). Borsoniidae. Accessed through: World Register of Marine Species at http://www.marinespecies.o ....MolluscaBase (2018). Antarctospira Kantor, Harasewych & Puillandre, 2016. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=881039 on 2018-11-13 Species Species within the genus ''Antarctospira'' include: * '' Antarctospira angusteplicata'' (Strebel, 1905) * '' Antarctospira badenpowelli'' (Dell, 1990) * '' Antarctospira falklandica'' (Powell, 1951) * '' Antarctospira mawsoni'' (Powell, 1958) * '' Antarctospira principalis'' (Thiele, 1912) ;Species brought into synonymy: * ''Antarctospira paragenota'' (Powell, 1951): synonym of '' Antarctospira angusteplicata'' (Strebel, 1905) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc. The term ''aperture'' is used for the main opening in gastropod shells, scaphopod shells, and also for ''Nautilus'' and ammonite shells. The word is not used to describe bivalve shells, where a natural opening between the two shell valves in the closed position is usually called a ''gape''. Scaphopod shells are tubular, and thus they have two openings: a main anterior aperture and a smaller posterior aperture. As well as the aperture, some gastropod shells have additional openings in their shells for respiration; this is the case in some Fissurellidae (keyhole limpets) where the central smaller opening at the apex of the shell is called an orifice, and in the Haliotidae (abalones) where the row of respiratory openings in the shell are also called orifices. In gastropods In some prosobranch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphanitoma
''Aphanitoma'' is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.Bouchet, P.; Gofas, S. (2015). Aphanitoma Bellardi, 1875. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=181080 on 2016-02-08 Description The shell has a fusiform shape. The sinus is scarcely apparent. The biplicate columella is nearly straight. The canal is rather short and slightly curved. Species Species within the genus ''Aphanitoma'' include: * '' Aphanitoma locardi'' Bavay, 1906 * '' Aphanitoma mariottinii'' Smriglio, Rufini & Martin Perez, 2001 * † '' Aphanitoma targioniana'' (D'Ancona, 1873) : a little known species from the bathyal malacofauna of the upper Pliocene from Romagna Romagna ( rgn, Rumâgna) is an Italian historical region that approximately corresponds to the south-eastern portion of present-day Emilia-Romagna, North Italy. Traditionally, it is limited by the Apennines to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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