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Pecten Excavatus
''Pecten excavatus'' is a species of scallop, marine bivalve molluscs in the taxonomic family Pectinidae. Shell description In this species, the valves are greatly inequal and plano-convex in shape: the right valve is highly convex, and the left valve is correspondingly concave, an arrangement unusual within the scallop family. The valves are front-back symmetrical, however, and the ears are equal, convex, and rectangularly truncated. It can be distinguished from the very similar species ''Pecten albicans ''Pecten albicans'', common name Japanese baking scallop, is a species of marine bivalve mollusks in the family Pectinidae, the scallops. Description ''Pecten albicans'' has a shell reaching a size of 95 mm, with about 12 radiating ribs. The c ...'' by the number of ribs present on either valve. ''P. albicans'' has in the range of seven to ten ribs with a mode of eight, while those of ''P. excavatus'' range from eight to eleven or more with an average number of ten. ... [...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] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scallop
Scallop () is a common name that encompasses various species of marine bivalve mollusks in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters. Scallops are a cosmopolitan family of bivalves found in all of the world's oceans, although never in fresh water. They are one of the very few groups of bivalves to be primarily "free-living", with many species capable of rapidly swimming short distances and even migrating some distance across the ocean floor. A small minority of scallop species live cemented to rocky substrates as adults, while others attach themselves to stationary or rooted objects such as seagrass at some point in their lives by means of a filament they secrete called a byssal thread. The majority of species, however, live recumbent on sandy substrates, and when they sense the presence of a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
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] |
Mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectinidae
Scallop () is a common name that encompasses various species of marine bivalve mollusks in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters. Scallops are a cosmopolitan family of bivalves found in all of the world's oceans, although never in fresh water. They are one of the very few groups of bivalves to be primarily "free-living", with many species capable of rapidly swimming short distances and even migrating some distance across the ocean floor. A small minority of scallop species live cemented to rocky substrates as adults, while others attach themselves to stationary or rooted objects such as seagrass at some point in their lives by means of a filament they secrete called a byssal thread. The majority of species, however, live recumbent on sandy substrates, and when they sense the presence of a pr ... [...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] |
Pecten Albicans
''Pecten albicans'', common name Japanese baking scallop, is a species of marine bivalve mollusks in the family Pectinidae, the scallops. Description ''Pecten albicans'' has a shell reaching a size of 95 mm, with about 12 radiating ribs. The color of the surface usually ranges from light brown to dark brown, but it may be also orange or purple. The lower valve of this species is less convex than in ''Pecten excavatus''. This species is of commercial value for fishing in Japan. Distribution This species can be found in the Japanese and the South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phi ...s. Habitat These scallops are present in shallow inshore reef areas, at depths of 40–115 meters. References WoRMSEncyclopedia of lifeDiscover Life External links Conchology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
