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Notobryon Wardi
''Notobryon wardi'', the iridescent nudibranch, is a species of scyllid nudibranch, and is found in South Africa. It is a marine gastropod mollusc in the family Scyllaeidae.Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. ''Two Oceans: a guide to the marine life of southern Africa'' Distribution This species is found around the South African coast from Elands Bay to Jeffreys Bay. It is usually found inter-tidally but has been found to 20 m. Description ''Notobryon wardi'' is a medium-sized (up to 50 mm) smooth-bodied nudibranch. The body is reddish-brown with iridescent blue-green spots on its sides and back. The smooth rhinophores are surrounded by cup-like sheaths. Two sets of wispy gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...s are flanked by ... [...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] |
Scyllaeidae
Scyllaeidae is a taxonomic family of sea slugs, nudibranchs, marine gastropod mollusks in the superfamily Dendronotoidea.Bouchet, P. (2012). Scyllaeidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=23115 on 2012-06-07 This family is within the suborder Cladobranchia (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Genera Genera in the family Scyllaeidae include: *'' Crosslandia'' Eliot, 1902 *'' Notobryon'' Odhner, 1936 *'' Scyllaea'' Linnaeus, 1758 ;Genera brought into synonymy: * ''Nerea'' Lesson, 1831: synonym of ''Scyllaea'' Linnaeus, 1758 * ''Zoopterygius'' Osbeck, 1757: synonym of ''Scyllaea'' Linnaeus, 1758 (non-binomial) References *http://www.catalogueoflife.org/ Retrieved 16 September 2009 *http://www.seaslugforum.net/ Retrieved 16 September 2009 * Vaught, K.C. (1989). ''A classification of the living Mollusca''. American Malacologists: Melbourne, FL (USA). . XII, 195 pp. Pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nudibranch
Nudibranchs () are a group of soft-bodied marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", "dragon", or "sea rabbit". Currently, about 3,000 valid species of nudibranchs are known.Ocean Portal (2017)A Collage of Nudibranch Colors Smithsonian National Museum of Natural History. Retrieved 17 April 2018. The word "nudibranch" comes from the Latin "naked" and the Ancient Greek () "gills". Nudibranchs are often casually called sea slugs, as they are a family of opistobranchs (sea slugs), within the phylum Mollusca (molluscs), but many sea slugs belong to several taxonomic groups which are not closely related to nudibranchs. A number of these other sea slugs, such as the photosynthetic ''Sacoglossa'' and the colourful Aglajidae, are often confused with nudibranchs. Distribut ... [...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, |
Gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda 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 Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and re ... [...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] |
Elands Bay
Elands Bay is a town in South Africa, situated in the Western Cape Province, on the Atlantic Ocean, at . The town is located about 220 kilometres (two and a half hours drive) north from Cape Town. It is a world class surfing location and is also noted for its caves, which have a number of rock paintings. In 2009, Heritage Western Cape declared the Elands Bay Cave and most of Baboon Point (Cape Deseada), on which it is located, as a provincial heritage site.Provincial Notice 4619,Province of the Western Cape Provincial Gazette, No. 6621, Cape Town: 9 April 2009, p.549 Eland's Bay along with much of this coastline is an "important" bird habitat. The local wetland, Verlorenvlei, is a Ramsar wetland. File:ElandsBay1979.jpg, Cave at Eland's Bay See also * Mussel Point, a large "prehistoric" shell midden near Elands Bay * Verlorevlei River Verlorevlei River is a river in the Western Cape province of South Africa. Lying on the Sandveld of the West Coast, the river runs past E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeffreys Bay
Jeffreys Bay ( af, Jeffreysbaai, nicknamed J-bay) is a town of 27,107 inhabitants as of the 2011 census in the Eastern Cape province of South Africa. It Is the seat of the Kouga municipality and is famous amongst surfers as a surf capital due to the right-hand point break at Supertubes Beach. The town is situated just off the N2 Highway, about 75 kilometres southwest of Port Elizabeth. History Jeffreys Bay is named after the senior partner of the firm Jeffrey & Glendinnings that opened a store in 1849 on the location where the town is today. Jeffrey is believed to be the first person to have settled there. In the late 1960s and early 1970s, Jeffreys Bay was known as a hippie hangout, where the now-burgeoning surf community originated. Jeffreys Bay has grown from a sleepy little fishing town over the past few years and is one of the fastest expanding urban areas in the country. Jeffreys Bay as a surfing destination was made famous by Bruce Brown's movie "The Endless Summer" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinophores
A rhinophore is one of a pair of chemosensory club-shaped, rod-shaped or ear-like structures which are the most prominent part of the external head anatomy in sea slugs, marine gastropod opisthobranch mollusks such as the nudibranchs, sea hares (Aplysiomorpha), and sap-sucking sea slugs (Sacoglossa). Etymology The name relates to the rhinophore's function as an organ of "smell". ''Rhino-'' means nose from Ancient Greek ῥίς ''rhis'' and from its genitive ῥινός ''rhinos''. "Phore" means "to bear" from New Latin ''-phorus'' and from Greek -phoros (φορος) "bearing", a derivative of ''phérein'' (φέρειν). Function Rhinophores are scent or taste receptors, also known as chemosensory organs situated on the dorsal surface of the head. They are primarily used for distance chemoreception and rheoreception (response to water current). The "scents" detected by rhinophores are chemicals dissolved in the sea water. The fine structure and hairs of the rhinophore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill
A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (pl. branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill cham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
