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Isognomon Radiatus
''Isognomon radiatus'', the radial purse oyster or Lister's tree oyster, is a species of bivalve mollusc in the family Isognomonidae. It can be found along the Atlantic coast of North America, ranging from southern Florida to Brazil and Bermuda. Description Lister's tree oyster is an irregular, fan-shaped shell growing to about long. Each valve is a pale brown colour with whitish rays radiating from the umbo, the raised hump that is the first part of the shell to form when the animal is a juvenile. There are numerous sculptured concentric rings on the outside surface. It is attached to a hard substrate by byssus threads and often occurs in clusters. Distribution and habitat Lister's tree oyster occurs in southern Florida, the Caribbean Sea and Gulf of Mexico, Bermuda, the West Indies, the Cayman Islands and Brazil. It grows, sometimes in dense patches, on the roots of mangroves and on shallow rocky areas, down to a depth of about . On coral reefs it occurs on rock ledges and ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Eduard Anton
Hermann Eduard Anton (17 December 1794, in Görlitz – 24 March 1872, in Halle) was a German malacologist. Works * Anton H. E. (1839)''Verzeichniss der Conchylien'' Halle, xvi + 110 pp. Some authors consider the work to be published in 1838 while others in 1839. Taxa described Taxa described by Hermann Eduard Anton include (sorted chronologically): 1838 * '' Bonellia obtusa'' Anton, 1838 * '' Cardiocardita'' Anton, 1838 * '' Clanculus miniatus'' (Anton, 1838) * '' Echinolittorina reticulata'' (Anton, 1838) * '' Eulima dubia'' Anton, 1838 * '' Eulima incerta'' Anton, 1838 * ''Fasciolaria magna'' (Anton, 1838) * ''Fasciolaria sulcata'' (Anton, 1838) * '' Fusinus indicus'' (Anton, 1838) * '' Isognomon radiatus'' (Anton, 1838) * '' Latirus fenestratus'' (Anton, 1838) * '' Latirus impressus'' (Anton, 1838) * '' Latirus plicatulus'' (Anton, 1838) * '' Monoplex wiegmanni'' (Anton, 1838) * '' Nerita planospira'' Anton, 1838 * '' Ostrea imputata'' Anton, 1838 * '' Oxystele tigrina'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (biology)
In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation. In agriculture and horticulture * Cellulose substrate * Expanded clay aggregate (LECA) * Rock wool * Potting soil * Soil In animal biotechnology Requirements for animal cell and tissue culture Requirements for animal cell and tissue culture are the same as described for plant cell, tissue and organ culture (In Vitro Culture Techniques: The Biotechnological Principles). Desirable requirements are (i) air conditioning of a room, (ii) hot room with temperature recorder, (iii) microscope r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isognomon Alatus
''Isognomon alatus'', the flat tree oyster, is a species of bivalve mollusc in the family Isognomonidae. It can be found along the Atlantic coast of North America, ranging from southern Florida to Brazil and Bermuda. Description The flat tree oyster has two thin, irregularly shaped valves joined by a long straight hinge. The exterior is sculptured by a large number of rough, concentric rings with loose flakes and varies in colour from a pale brownish olive to a purplish black. The nacre on the inside is lustrous and cream coloured shaded with purplish brown. The shell is attached to the substrate by a byssus thread and grows to about in length. Distribution and habitat The flat tree oyster is found in southern Florida, the Caribbean Sea and Gulf of Mexico, Colombia, Costa Rica, Cuba, Jamaica, Lesser Antilles, Puerto Rico, Venezuela, San Andrés and Brazil.Abbott, R.T. & Morris, P.A. ''A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies.'' New York: Houghton M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Pool
A tide pool or rock pool is a shallow pool of seawater that forms on the rocky intertidal shore. Many of these pools exist as separate bodies of water only at low tide. Many tide pool habitats are home to especially adaptable animals that have engaged the attention of naturalists and marine biologists, as well as philosophical essayists: John Steinbeck wrote in ''The Log from the Sea of Cortez'', "It is advisable to look from the tide pool to the stars and then back to the tide pool." Zones from shallow to deep The rocky shoreline exhibits zonation as a feature of the shoreline. Tidal movements of water creates zonation patterns along rocky shores from high to low-tide. The area above the high-tide mark is the supralittoral zone which is virtually a terrestrial environment. The area around the high-tide mark is known as the intertidal fringe. Between the high and low-tide marks is the intertidal or littoral zone. Below the low-tide mark is the sublittoral or subtidal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinometra Lucunter
''Echinometra lucunter'', the rock boring urchin, is a species of sea urchin in the family Echinometridae. It is found in very shallow parts of the western Atlantic Ocean and the Caribbean Sea. Description ''Echinometra lucunter'' has an elliptical rather than a round test (shell). It can grow to a diameter of about and grows larger at the extreme north and south ends of its range than it does in the centre. It has moderately short spines with wide bases and sharp tips. The colour of the test varies from black to deep brownish-red, often being more ruddy on its aboral (upper) surface than on its oral (lower) surface. The spines are usually black. Distribution and habitat ''Echinometra lucunter'' is common throughout the Caribbean Sea and also occurs in Florida, Bermuda and the South American coast as far south as Brazil. It occurs on shallow rocky areas and on coral reefs usually at depths of or less but occasionally in deeper water down to about . It is sometimes found am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Cayman
Little Cayman is one of three Islands that make up the Cayman Islands. It is located in the Caribbean Sea, approximately 60 miles (96 km) northeast of East End, Grand Cayman and five miles (8 km) west of West End, Cayman Brac. Little Cayman is the least populous island of the three, with a permanent population of about 160 (2021) including seasonal residents/homeowners. The majority of the population are expatriate workers from Jamaica, the Philippines, and Honduras and from other Latin American countries as well as Canada, the USA, India, Australia, Scotland, England, and South Africa. There are a handful of local Caymanians estimated as fewer than 20. It is about 10 miles (16 km) long with an average width of 1 mile (1600 m) and most of the island is undeveloped. Almost the entire island is at sea level. The highest elevation is about 40 feet (12 metres). The rainy season, which consists of mostly light showers, occurs in Mid-April until June and again in mid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spondylus Americanus
''Spondylus americanus'', the Atlantic thorny oyster, is a species of bivalve mollusc. It can be found along the Atlantic coast of North America, ranging from North Carolina to Brazil. Description The Atlantic thorny oyster can grow up to in diameter. The valves of the shell are roughly circular and the upper one is decorated with many spiny protuberances up to long. When growing in a crevice, the shape of the shell adapts itself to the available space. The color varies but is usually white or cream with orange or purplish areas making it well camouflaged to hide from its predators. The lower valve is flat and is attached to the substrate. When the living animal is lying on the seabed it is usually not visible because of the algae, marine animals and sediment that cover the shell. The flat tree oyster and Lister's tree oyster are often among these epibionts. A diver swimming past may just observe a slight movement on the seabed as the oyster snaps its valves shut. Young anima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Byssus
A byssus () is a bundle of filaments secreted by many species of bivalve mollusc that function to attach the mollusc to a solid surface. Species from several families of clams have a byssus, including pen shells (Pinnidae), true mussels (Mytilidae), and Dreissenidae. Filaments Byssus filaments are created by certain kinds of marine and freshwater bivalve mollusks, which use the byssus to attach themselves to rocks, substrates, or seabeds. In edible mussels, the inedible byssus is commonly known as the "beard", and is removed before cooking. Many species of mussels secrete byssus threads to anchor themselves to surfaces, with families including the Arcidae, Mytilidae, Anomiidae, Pinnidae, Pectinidae, Dreissenidae, and Unionidae. Mechanics The byssus, or byssal complex, is composed of multiple extracellular collagenous threads that are placed radially by the mussel from a central stem. Each thread is composed of three regions: a corrugated proximal region close to the mussel b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve Shell
A bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk. In life, the shell of this class of mollusks is composed of two hinged parts or ''valves''. Bivalves are very common in essentially all aquatic locales, including saltwater, brackish water, and freshwater. The shells of bivalves commonly wash up on beaches (often as separate valves) and along the edges of lakes, rivers, and streams. Bivalves by definition possess two shells or ''valves'', a "right valve" and a "left valve", that are joined by a ligament. The two valves usually articulate with one another using structures known as "teeth" which are situated along the hinge line. In many bivalve shells, the two valves are symmetrical along the hinge line—when truly symmetrical, such an animal is said to be ''equivalved''; if the valves vary from each other in size or shape, ''inequivalved''. If symmetrical front-to-back, the valves are said to be ''equilateral'', and are otherwise considered ''in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bermuda
) , anthem = "God Save the King" , song_type = National song , song = " Hail to Bermuda" , image_map = , map_caption = , image_map2 = , mapsize2 = , map_caption2 = , subdivision_type = Sovereign state , subdivision_name = , established_title2 = English settlement , established_date2 = 1609 (officially becoming part of the Colony of Virginia in 1612) , official_languages = English , demonym = Bermudian , capital = Hamilton , coordinates = , largest_city = Hamilton , ethnic_groups = , ethnic_groups_year = 2016 , government_type = Parliamentary dependency under a constitutional monarchy , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Rena Lalgie , leader_title3 = Premier , leader_name3 = Edward David Burt , legislature = Parliament , upper_house = Senate , lower_house = House of Assembly , area_km2 = 53.2 , area_sq_mi = 20.54 , area_rank = , percent_water = 27 , elevation_max_m = 79 , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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