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Lithopoma Tectum 003
''Lithopoma'' is a genus of medium-sized to large sea snails with a calcareous operculum, marine gastropod mollusks in the subfamily Turbininae of the family Turbinidae, the turban snails.Bouchet, P.; Rosenberg, G. (2011). Lithopoma Gray, 1850. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=240760 on 2011-11-09 Description The elevated, imperforate shell has a turbinate or trochiform shape. with a plicate spire that is flat or concave below. Its periphery is carinated or rounded. The base of the shell is somewhat convex. The whorls above are radiately plicate. The operculum is oval, outside coarsely granulose, and either simply convex or with a curved spiral rib with its terminations connected by a straight one. The nucleus is submarginal. Distribution This genus occurs in the Caribbean Sea, the Gulf of Mexico and off the Lesser Antilles. Species Species within this genus were previously placed in the genus ''Astra ... [...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] |
Caribbean Sea
The Caribbean Sea ( es, Mar Caribe; french: Mer des Caraïbes; ht, Lanmè Karayib; jam, Kiaribiyan Sii; nl, Caraïbische Zee; pap, Laman Karibe) is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico and Central America to the west and southwest, to the north by the Greater Antilles starting with Cuba, to the east by the Lesser Antilles, and to the south by the northern coast of South America. The Gulf of Mexico lies to the northwest. The entire area of the Caribbean Sea, the numerous islands of the West Indies, and adjacent coasts are collectively known as the Caribbean. The Caribbean Sea is one of the largest seas and has an area of about . The sea's deepest point is the Cayman Trough, between the Cayman Islands and Jamaica, at below sea level. The Caribbean coastline has many gulfs and bays: the Gulf of Gonâve, Gulf of Venezuela, Gulf of Darién, Golfo de los Mosquitos, Gulf of Paria and Gulf of Honduras. The Caribbean Sea has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma
''Lithopoma'' is a genus of medium-sized to large sea snails with a calcareous operculum, marine gastropod mollusks in the subfamily Turbininae of the family Turbinidae, the turban snails.Bouchet, P.; Rosenberg, G. (2011). Lithopoma Gray, 1850. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=240760 on 2011-11-09 Description The elevated, imperforate shell has a turbinate or trochiform shape. with a plicate spire that is flat or concave below. Its periphery is carinated or rounded. The base of the shell is somewhat convex. The whorls above are radiately plicate. The operculum is oval, outside coarsely granulose, and either simply convex or with a curved spiral rib with its terminations connected by a straight one. The nucleus is submarginal. Distribution This genus occurs in the Caribbean Sea, the Gulf of Mexico and off the Lesser Antilles. Species Species within this genus were previously placed in the genus ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megastraea Undosa
''Megastraea undosa'', common name the wavy turban snail, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. This species is native to the coast of California. Distribution This species occurs in the eastern Pacific Ocean from California, USA to Central Baja California, Mexico. Description One of the largest gastropod shells found on the Southern California coast, this species varies between 40 mm and 145 mm. The shell lacks an umbilicus, and has a turbinate-conical shape. Like other shells of the family turbinidae it is composed of a thick inner nacreous layer, covered by a thinner porcellanous layer. In this species both are covered by a dark brown shaggy periostracum in life. The periphery of the shell forms a twisted ridge at the outer edge of each whorl. Each whorl also has regular, coarsely sculpted rows of fine knobs and folds. The base is marked with several spiral cords concentric to the arcuated columell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astraea Heliotropium
''Astraea heliotropium'', common name the sunburst star turban or the circular saw shell, is a large sea snail, a marine gastropod mollusc of the family Turbinidae, the turbans and star snails.WoRMS (2010). ''Astraea heliotropium'' (Martyn, 1784). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=404992 on 2011-03-08 This large species was brought to Europe for the first time by the famous Captain Cook. Shell description The height of the shell is up to 60 mm, and the width is up to 120 mm. The large shell has a depressed-conic shape. Below widely it is umbilicate and concave. The spire is dome-shaped, and consists of 5 convex whorls. The suture is rendered zigzag by the prominent compressed triangular recurved vaulted spines which arm the acutely carinated periphery. The whorls above and below contain numerous spiral series of granules. The wide umbilicus is deep, and coarsely obliquely striate within. The ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomaulax Gibberosus
''Pomaulax gibberosus'', common name the red turban, is a species of medium-sized to large sea snail with a calcareous operculum, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2011). Pomaulax gibberosus (Dillwyn, 1817). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581670 on 2011-11-09 Distribution This species lives in the Eastern Pacific, from British Columbia, Canada, to Baja California, Mexico. File:Lithopoma gibberosa.jpg, ''Pomaulax gibberosus'', the shell encrusted with the red coralline alga ''Lithothamnion ''Lithothamnion'' is a genus of thalloid red alga comprising 103 species. Its members are known by a number of common names.Recorded common names are griuán, maërl, punalevä-suku, stenhinna and maerl. The monomerous, crustose thalli are compos ...'' File:Lithopoma gibberosa 2.jpg, ''Pomaulax gibberosus'' File:Lithopoma gibberosa 1.jpg, A live specimen of ''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Tuber
''Lithopoma tuber'', common name the green star shell, is a species of large sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Description The size of the shell varies between 25 mm and 75 mm. The imperforate, very solid shell has a turbinate-conic shape. Its color pattern is dirty white or pale green, radiately maculated with brown above, irregularly marked and lighter below. The shell contains six whorls. The upper two are smooth by erosion, the following whorls are obliquely coarsely plicate and finely wrinkled in the same direction above, somewhat shouldered. They are obtusely angular near the periphery, above which several obscure beaded lirae revolve, shagreened by intersection of incremental striae and oblique wrinkles. The base of the shell is nearly smooth. The oval aperture is very oblique and silvery within. The short columella is wide, and generally bituberculate at the base, excavated over the location of the umbilicu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Tectum
''Lithopoma tectum'', common name the West Indian starsnail, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Distribution This species occurs in the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles; in the Atlantic Ocean off Brazil. Description The maximum recorded shell length is 63 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . The imperforate, solid shell has an elevated-conic shape. It is longitudinally subobliquely crinkled. Its color pattern is reddish orange, marked in places with white and olivaceous. The suture is impressed and irregular. The 6½ whorls are subplanulate above, slightly concave in the middle. The apical one or two are smooth, the following longitudinally plicate. The folds are cut in the middle by two impressed spiral lines, projecting at the carinated periphery, and about twenty-three in number on the bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Phoebium
''Lithopoma phoebium'', common name the longspine star shell, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2011). Lithopoma phoebium (Röding, 1798). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=413409 on 2012-03-15 Distribution This is a tropical Western Atlantic species. Distribution of ''Lithopoma phoebium'' include: Aruba, Belize, Bonaire, Caribbean Sea, Cayman Islands, Colombia, Costa Rica, Cuba, Curaçao, Gulf of Mexico, Jamaica, Lesser Antilles, Mexico, Panama, Puerto Rico, San Andres, The United States, and Venezuela.Rosenberg, G. (2010). ''Astralium phoebium'' (Röding, 1798). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=419498 on 2011-03-17 Description The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Caelatum
''Lithopoma caelatum'', common name the carved star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Distribution This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles; in the Atlantic Ocean off the Bahamas. Description The maximum recorded shell length is 100 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . The solid, imperforate shell has a conic shape. Its color pattern is soiled white, more or less tinged with green and brown. The elevated spire has an acute apex. The 6-7 whorls are convex, with fine incremental striae and oblique radiating folds above. The periphery shows several prominent squamose or spinose lirae. The base of the shell is somewhat flattened, with close squamose lirae separated by deep interstices. The aperture is silvery within, transversely ovate, very oblique, its margins fluted. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Brevispina
''Lithopoma brevispina'' is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.Bouchet, P. (2012). ''Lithopoma brevispina'' (Lamarck, 1822). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581680 on 2012-09-01 Description The size of the shell varies between 40 mm and 60 mm. The imperforate, solid shell has a turbinate shape. The 6-7 whorls 6- are, flat above, obliquely costate below the sutures, then with several revolving series of granules. The periphery is sharply carinate, armed with short triangular spines which festoon the sutures and project more or less, about 10–13 in number on the body whorl. The base of the shell is a little rounded, radiately lamellose striate and concentrically lirate with three to five lirae, mostly tuberculate, especially in the young. The oval aperture is transverse, channelled at its outer angle. The short columella is arche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithopoma Americanum
''Lithopoma americanum'' is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. Distribution This marine snail occurs in the Caribbean Sea, the Gulf of Mexico and off the Lesser Antilles. Description The maximum recorded shell length is .Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . The elevated, imperforate, solid shell has a trochiform shape. Its color pattern is white or yellowish. The shell contains seven whorls. The upper three whorls are smooth in adults by erosion of the sculpture, flattened or concave on their upper surfaces, longitudinally obliquely plicate. The folds number about thirty-six on the body whorl and terminate on the periphery in nodules (or spines in the young,) generally intersected about the middle by two to four spiral impressed lines. The periphery is angled, more or less swollen. The base of the shell is nearly flat, more or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
