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Nerita Polita (Linné, 1758) (4574792797)
''Nerita polita'' is a species of sea snail, a marine gastropod mollusk in the family Neritidae, commonly known as polished nerite or kupe'e in Hawaiian. It is a marine snail that has the ability to provide significant resources such as proteins, vitamins, minerals. Description ''Nerita polita'' has a distinctively smooth and polished shell that is up to 4 cm in size. It has a smooth columella with 2–4 weak teeth on the edge. The shellʻs color is variable: mottled grey, red or cream, sometimes with thin or thick axial bands or a chevron pattern with white and gray spirals. The operculum is smooth, and is cream to black in color. The inside of the shell is mostly white, with a tint of yellow, and no teeth. ''Nerita polita'' is exposed to fresh sewage and heavy metals due to the industrialization and urbanization. Distribution and habitat ''Nerita polita'' is found in the tropical Indo-Pacific. It is mostly found in the intertidal, burring into the sand at the base of bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of many gastropods, including snails, 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, ostracum, is typically made of calcium carbonate (CaCO3) precipitated into an organic matrix ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neritidae
Neritidae, common name the nerites, is a Taxonomy (biology), taxonomic Family (biology), family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive Operculum (gastropod), operculum. MolluscaBase eds. (2021). MolluscaBase. Neritininae Poey, 1852. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=411639 on 2021-09-25 The family Neritidae includes marine genera such as ''Nerita'', marine and freshwater genera such as ''Neritina'', and freshwater and brackish water genera such as ''Theodoxus''. The common name "nerite" as well as the family name Neritidae and the genus name ''Nerita'', are derived from the name of Nerites (mythology), Nerites, who was a sea god in Greek mythology. Distribution Neritidae live primarily in the southern hemisphere, but there are some exceptions, such as a genus ''Theodoxus'' which can be found in Europe and Northern Africa Bunje P. M. & Lindberg D. R. ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hula
Hula () is a Hawaiian dance form expressing chant (''oli'') or song (Mele (Hawaiian language), ''mele''). It was developed in the Hawaiian Islands by the Native Hawaiians who settled there. The hula dramatizes or portrays the words of the oli or mele in a visual dance form. There are many sub-styles of hula, with the two main categories being Hula ʻAuana and Hula Kahiko. Ancient hula, performed before Western encounters with Hawaii, is called ''kahiko''. It is accompanied by chant and traditional instruments. Hula, as it evolved under Western influence in the 19th and 20th centuries, is called ''auana'' (a word that means "to wander" or "drift"). It is accompanied by song and Western-influenced musical instruments such as the guitar, the ukulele, ukulele, and the double bass. Terminology for two additional categories is beginning to enter the hula lexicon: "Monarchy" includes any hula which were composed and choreographed during the 19th century. During that time the influx ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Marine Molluscs Of Mozambique
The list of marine molluscs of Mozambique is a list of Seawater, saltwater species that form a part of the molluscan fauna of Mozambique. This list does not include the land or freshwater molluscs. Gastropoda Gastropods in Mozambique include: Patellogastropoda Patellidae - True limpets *''Cellana radiata capensis'' (Gmelin, 1791)(Port Alfred to Kenya)Branch, G.M. Griffiths, C.L. Branch, M.L. Beckley, L.E. ''Two Oceans: A guide to the marine life of southern Africa.'' 5th impression, David Philip, Cape Town, 2000. (syn. ''Cellana capensis'' Gmelin, ''Helcioniscus capensis'' (Gmelin, 1790), ''Patella capensis'' Gmelin, 1791) *Variable limpet ''Helcion concolor'' Krauss, 1848 (Eastern Cape to Mozambique) *''Patella flexuosa'' (Quoy & Gaimard, 1834) (Northern KwaZulu-Natal to Mzambique) (syn. ''Scutellastra flexuosa'') *''Patella pica'' Reeve, 1854 (Zululand to Mozambique) (syn. ''Scutellastra pica'') Vetigastropoda Pleurotomariidae *''Bayerotrochus africanus'' (Tomlin, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Marine Gastropods Of South Africa
This list of marine gastropods of South Africa attempts to list all of the sea snails and sea slugs of South Africa, in other words the marine (ocean), marine gastropod molluscs of that area. This list is a sub-list of the List of marine molluscs of South Africa. Gastropoda Marine gastropods in South Africa include: Patellogastropoda Patellidae - True limpets *''Cellana radiata capensis'' (Gmelin, 1791)(Port Alfred to Kenya) (syn. ''Cellana capensis'' Gmelin, ''Helcioniscus capensis'' (Gmelin, 1790), ''Patella capensis'' Gmelin, 1791) *Variable limpet ''Helcion concolor'' Krauss, 1848 (Eastern Cape to Mozambique) *''Helcion dunkeri'' Krauss, 1848 (Namibia to KwaZulu-Natal) *Prickly limpet ''Helcion pectunculus'' (Gmelin, 1791) (Namibia to central KwaZulu-Natal) *Rayed limpet ''Helcion pruinosis'' Krauss, 1848 (Cape Columbine to central KwaZulu-Natal) *''Patella aphanes'' (Robson, 1986) (Transkei to Cape Vidal) (syn. ''Scutellastra aphanes'') *Argenville's limpet ''Patella argenv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Littoral
The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas that are permanently submerged — known as the ''foreshore'' — and the terms are often used interchangeably. However, the geographical meaning of ''littoral zone'' extends well beyond the intertidal zone to include all neritic waters within the bounds of continental shelves. Etymology The word ''littoral'' may be used both as a noun and as an adjective. It derives from the Latin noun ''litus, litoris'', meaning "shore". (The doubled ''t'' is a late-medieval innovation, and the word is sometimes seen in the more classical-looking spelling ''litoral''.) Description The term has no single definition. What is regarded as the full extent of the littoral zone, and the way the littoral zone is divided into subre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (gastropod)
An 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, including the 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 (mollusc), 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 (mollusc), 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 are not capable of closing the shell aperture. Opercula have sometimes been modifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (gastropod)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus (mollusc), umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the Aperture (mollusc), aperture of the shell. These ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was the son of a curate and was born in Råshult, in the countryside of Småland, southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and 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. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater and even terrestrial species. 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 extant i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod
Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and sea slug, slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. It contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Furongian, Late Cambrian. , 721 family (taxonomy), families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently neontology, extant living fossil, with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
