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Gibbula Megamagus
''Gibbula'' is a genus of small sea snails, marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (2011). Gibbula Risso, 1826. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138590 on 2011-04-02 Taxonomy Affenzeller et al. (2017) have shown than several Mediterranean species hitherto assigned to ''Gibbula'' were forming a separate clade and should be assigned to the genus ''Steromphala''. They included in the restricted ''Gibbula'' clade the species ''G. magus'' (type species), ''G. fanulum'' and ''G. ardens''. However many other species were not taken into account in this paper and will remain listed in WoRMS under ''Gibbula'' until their phylogenetic position is assessed, but possibly do not belong to the restricted ''Gibbula'' clade. Distribution The species in this genus occur through all seas, except on the coast of the American continent. Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Divaricata
''Steromphala divaricata'', common name the divaricate gibbula, is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Steromphala divaricata (Linnaeus, 1758). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=576618 on 2020-12-30 Distribution It is found in the Mediterranean Sea, the Adriatic Sea and the Black Sea. Description The length of the shell is between 12 mm and 24 mm and is 16 mm to 19 mm wide. The conoidal shell is imperforate or narrowly perforate. It is very thick and solid, cinereous. The color of the shell is yellowish or green. It is longitudinally marked with rose-red lines, often oblique or broken into square dots. The spire is more or less elevated. Its outlines are rather convex. The six whorls are encircled by numerous lirulae, the upper ones flattened. The sutures ... [...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] |
Gibbula Capensis
''Gibbula capensis'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell varies between 10 mm and 14 mm. The narrowly umbilicated shell has a conoid-depressed shape with 5 whorls. The first whorl is roseate, eroded, the following convex above, depressed beneath, whitish or rosy, flammulated with brownish-violet radiating maculations, obliquely striate and spirally lirate. The lirae are flat, narrow and not granose. The body whorl is dilated, subangulate above, depresso-carinated at the periphery, convex beneath and ornamented with 9 concentric reddish lirae. The aperture is oblique and subquadrate. The lip is simple. The columella Lucius Junius Moderatus Columella (; Arabic: , 4 – ) was a prominent writer on agriculture in the Roman Empire. His ' in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the wo ... is arcuate, de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Candei
''Gibbula candei'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The naturalist Alcide d'Orbigny named the gastropod after Ferdinand de Candé. The size of an adult shell varies between 10 mm and 20 mm. The conoidal shell is olive-yellowish with purplish spots on the top. The shell is elevated and longitudinally unequally striate. The spire is gradate. The whorls are subbicarinate, smooth and flat. The aperture is subquadrangular. The open umbilicus has a smooth texture.George Washington Tryon George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American malacologist who worked at the Academy of Natural Sciences in Philadelphia. Biography George Washington Tryon was the son of Edward K. Tryon and Adeline Savidt ..., ''Structural and systematic conchology: an introduction to the study of the Mollusca'', pp. 206–207; 1882 Distribution This species occurs in the Atlantic Ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Buchi
''Gibbula buchi'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. It is only known as a fossil from the Late Middle Miocene of Austria (the Sarmatian Craton of the Paratethys The Paratethys sea, Paratethys ocean, Paratethys realm or just Paratethys was a large shallow inland sea that stretched from the region north of the Alps over Central Europe to the Aral Sea in Central Asia. Paratethys was peculiar due to its pa ...) in the age range between 13.65 Ma and 11.608 Ma. It was an epifaunal grazer in the offshore zone. A study of M. Harzhauser and T. Kowalke (2002) has put this species in the genus ''Gibbula''.M. Harzhauser and T. Kowalke. 2002. Sarmatian (Late Middle Miocene) Gastropod Assemblages of the Central Paratethys. Facies 46:57-82 References buchi {{Trochidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Blanfordiana
''Gibbula'' is a genus of small sea snails, marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (2011). Gibbula Risso, 1826. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138590 on 2011-04-02 Taxonomy Affenzeller et al. (2017) have shown than several Mediterranean species hitherto assigned to ''Gibbula'' were forming a separate clade and should be assigned to the genus ''Steromphala''. They included in the restricted ''Gibbula'' clade the species ''G. magus'' (type species), ''G. fanulum'' and ''G. ardens''. However many other species were not taken into account in this paper and will remain listed in WoRMS under ''Gibbula'' until their phylogenetic position is assessed, but possibly do not belong to the restricted ''Gibbula'' clade. Distribution The species in this genus occur through all seas, except on the coast of the American continent. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Washington Tryon
George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American malacologist who worked at the Academy of Natural Sciences in Philadelphia. Biography George Washington Tryon was the son of Edward K. Tryon and Adeline Savidt. In 1853 he attended the Friends Central School in Philadelphia. In 1859, Tryon became a member of the Academy of Natural Sciences of Philadelphia. He was largely responsible for the construction of new buildings for the Academy, especially, in 1866, a section for malacology. In 1869 he became the conservator in this malacological section. In 1865, together with a group of American malacologists, he founded (and financed) the American Journal of Conchology. This ended in 1872. In 1879 he started the ''Manual of Conchology; structural and systematic; with illustrations of the species'', volume 1, series 1. When he died, nine volumes of the first series had been published. From 1887 until 1888, his assistant was Henry Augustus Pilsbry. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Benzi
''Gibbula benzi'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Rosenberg, G. (2012). ''Gibbula benzi'' (Krauss, 1848). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=599740 on 2012-11-23 Description The size of the shell varies between 7 mm and 12 mm. The thin, perforate shell has an orbicular-conoid shape with irregularly transversely costate striae. The color is various, it is purplish, maculate with whitish, orange-yellow or rose-red, with traces of clear spots at the suture, or else purple-red with white flecks. The 5 whorls are moderately convex, separated by a distinct suture. The body whorl is ventricose, subangular in the middle. The convex base of the shell is striate. The rotund-quadrate aperture is white within. The oblique columella is concave and dilated above. The narrow umbilicus is profound. The slightly elevated, rather narrow, transverse s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Beckeri
''Gibbula beckeri'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. Description The size of the shell attains . The shell consists of the protoconch nucleus plus 4 whorls. The profile is rather strongly convex in the upper half of the whorl. There are spiral lirae 2 on 2nd and 3rd whorls, 3 on 4th whorl. These are broad and low, scarcely projecting above the profile, defined by impressed striae, the 3rd being peripheral and feebly carinate; an additional stria (or 2) between 1st and 2nd lirae, and 2-3 between 2nd and 3rd. Sometimes (as in a cotype) only 1 (midwhorl) lira on 2nd and 3rd whorls, but the peripheral one comes into view on 4th whorl. On the base of the shell there is usually a marginal lira and 7-8 weaker lirae, variable. The umbilicus is not completely closed in the largest shells. The growth lines are distinct. The colour of the shell is grey or violaceous-grey with white or pale spots, radiating streaks, and/or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Aurantia
''Gibbula aurantia'' is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.MolluscaBase eds. (2020). MolluscaBase. Gibbula aurantia F. Nordsieck, 1975. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=748794 on 2020-12-31 The name was introduced conditionally in Nordsieck & Talavera, 1979, but not available therefrom. Description Distribution This species occurs in the Atlantic Ocean off Lanzarote Lanzarote (, , ) is a Spanish island, the easternmost of the Canary Islands in the Atlantic Ocean. It is located approximately off the north coast of Africa and from the Iberian Peninsula. Covering , Lanzarote is the fourth-largest of the i ... in the Canary Islands. References * Nordsieck F. (1975). Conchiglie delle Isole Canarie. Parte 2.. La Conchiglia 75-76: 3-7, 22 * Nordsieck, F. & García-Talavera, F. (1979) Moluscos Marinos de Canarias y Madera (Gastropoda). Aula d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Ardens
''Gibbula ardens'' is a species of small sea snail, known as top snails or top shells, marine gastropod molluscs in the family Trochidae, the top snails.Gofas, S. (2013). Gibbula ardens (Salis Marschlins, 1793). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141780 on 2014-01-22 Description The shell of an adult ''Gibbula ardens'' can be as large as . The solid, umbilicate shell has a depressed conic shape with a variable sculpture. Its color is quite variable, but usually is reddish or olive brown, with a subsutural series of short white flammules, a row of white spots on the periphery, the remainder of the surface sparsely punctate with white. The spire is acute. The sutures are markedly canaliculate. The whorls (about 7) are convex and spirally lirate. Their interstices are obliquely regularly crispate-striate. The 5 or 6 lirae on the penultimate whorl are frequently grooved, and usually with lirulae between them. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibbula Anodosula
''Gibbula'' is a genus of small sea snails, marine gastropod molluscs in the subfamily Cantharidinae of the family Trochidae, the top snails.Bouchet, P.; Gofas, S. (2011). Gibbula Risso, 1826. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138590 on 2011-04-02 Taxonomy Affenzeller et al. (2017) have shown than several Mediterranean species hitherto assigned to ''Gibbula'' were forming a separate clade and should be assigned to the genus ''Steromphala''. They included in the restricted ''Gibbula'' clade the species ''G. magus'' (type species), ''G. fanulum'' and ''G. ardens''. However many other species were not taken into account in this paper and will remain listed in WoRMS under ''Gibbula'' until their phylogenetic position is assessed, but possibly do not belong to the restricted ''Gibbula'' clade. Distribution The species in this genus occur through all seas, except on the coast of the American continent. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
