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Phyllodesmium Orientale
''Phyllodesmium orientale'' is a species of small sea slug, an aolid nudibranch, a marine gastropod mollusk in the family Facelinidae. References Facelinidae Gastropods described in 1991 {{Facelinidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kikutaro Baba
was a Japanese malacologist. He was the leading researcher on sea slugs and bubble snails, opisthobranch gastropod mollusks in Japan. Biography * 1932–1941 Kyushu University * 1948–1949 Osaka Kyoiku University * 1976 – Order of the Rising Sun Kikutaro Baba was married to Sonoko Baba. He died of pneumonia in hospital in Japan on 30 November 2001.(January 2002) nudibranch NEWVol.4 No.04: 44/ref> Species Species described by Kikutaro Baba include: * ''Aglaja orientalis'' Baba, 1949 * ''Aldisa cooperi'' Robilliard & Baba, 1972 * ''Antonietta janthina'' Baba & Hamatani, 1977 * ''Aplysia kurodai'' Baba, 1937 * ''Aplysia sagamiana'' Baba, 1949 * ''Aplysiopsis minor'' (Baba, 1959) * ''Aplysiopsis nigra'' (Baba, 1949) * ''Aplysiopsis orientalis'' Baba, 1949 * ''Armina magna'' Baba, 1955 * ''Bornella japonica'' Baba, 1949 * ''Cadlina japonica'' Baba, 1937 * ''Cadlina sagamiensis'' Baba, 1937 * ''Carminodoris bifurcata'' Baba, 1993 * ''Chelidonura fulvipunctata'' Baba, 1938 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of Taxonomy (biology), 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 reproduction, produce Fertility, fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), 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 binomial nomenclature, 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 specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Slug
Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails (marine gastropod mollusks) that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells. Sea slugs have an enormous variation in body shape, color, and size. Most are partially translucent. The often bright colors of reef-dwelling species implies that these animals are under constant threat of predators, but the color can serve as a warning to other animals of the sea slug's toxic stinging cells ( nematocysts) or offensive taste. Like all gastropods, they have small, razor-sharp teeth, called radulas. Most sea slugs have a pair of rhinophores—sens ... [...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. Dist ... [...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, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusk
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Facelinidae
The Facelinidae are a taxonomic family of colorful sea slugs. These are specifically aeolid nudibranchs. They are marine gastropod molluscs.Bouchet, P. (2012). Facelinidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=191 on 2012-07-22 Taxonomy 2005 taxonomy This family consists of the following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Facelininae Bergh, 1889 - synonyms: Caloriidae Odhner, 1968; Phidianidae Odhner, 1968; Pruvotfoliinae Tardy, 1970 * Babakininae Roller, 1973 - synonym: Babainidae Roller, 1972 (inv.) * Crateninae Bergh, 1889 - synonym: Rizzoliinae Odhner, 1939 (inv.) * Favorininae Bergh, 1889 - synonyms: Myrrhinidae Bergh, 1905; Phyllodesmiinae Thiele, 1931; Facalaninae Er. Marcus, 1958 * Herviellinae Burn, 1967 * Pteraeolidiinae Risbec, 1953 2007 taxonomy Gosliner et al. (2007)Gosliner T. M., Gonzáles-Duarte M. M. & Cervera J. L. (2007). "Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ishigaki, Okinawa
is a city in Okinawa Prefecture, Japan. It includes Ishigaki island and the Senkaku Islands territory. The city is the political, cultural, and economic center of the Yaeyama Islands. New Ishigaki Airport serves the city. As of December 2012, the city has an estimated population of 48,816 and a population density of 213 persons per km2. The total area is 229.00 km2. It is also the location of the disputed Senkaku Islands (see below in the Geography section). History The current city of Ishigaki was founded in 1908 as Yaeyama Village, an amalgamation of the Ishigaki, Ōhama, and Miyara magiri. In 1914 it was renamed to Ishigaki Village, and grew to become Ishigaki Town in 1926. Ishigaki was elevated to city status on July 10, 1947. Historical footnote: One of the first Frenchmen ever to visit Japan, Guillaume Courtet, came ashore at Ishigaki in 1636. Geography The city of Ishigaki covers the entirety of Ishigaki Island (). The island is surrounded by coral reefs. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okinawa
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city of Okinawa Prefecture, with other major cities including Okinawa, Uruma, and Urasoe. Okinawa Prefecture encompasses two thirds of the Ryukyu Islands, including the Okinawa, Daitō and Sakishima groups, extending southwest from the Satsunan Islands of Kagoshima Prefecture to Taiwan ( Hualien and Yilan Counties). Okinawa Prefecture's largest island, Okinawa Island, is the home to a majority of Okinawa's population. Okinawa Prefecture's indigenous ethnic group are the Ryukyuan people, who also live in the Amami Islands of Kagoshima Prefecture. Okinawa Prefecture was ruled by the Ryukyu Kingdom from 1429 and unofficially annexed by Japan after the Invasion of Ryukyu in 1609. Okinawa Prefecture was officially founded in 1879 by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zooxanthellae
Zooxanthellae is a colloquial term for single-celled dinoflagellates that are able to live in symbiosis with diverse marine invertebrates including demosponges, corals, jellyfish, and nudibranchs. Most known zooxanthellae are in the genus '' Symbiodinium'', but some are known from the genus '' Amphidinium'', and other taxa, as yet unidentified, may have similar endosymbiont affinities. The true ''Zooxanthella'' K.brandt is a mutualist of the radiolarian ''Collozoum inerme'' (Joh.Müll., 1856) and systematically placed in Peridiniales. Another group of unicellular eukaryotes that partake in similar endosymbiotic relationships in both marine and freshwater habitats are green algae zoochlorellae. Zooxanthellae are photosynthetic organisms, which contain chlorophyll a and chlorophyll c, as well as the dinoflagellate pigments peridinin and diadinoxanthin. These provide the yellowish and brownish colours typical of many of the host species. During the day, they provide their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenia (genus)
''Xenia'' is a genus of photosynthetic soft marine coral in the family Xeniidae. They resemble a mushroom, with "arms" coming out from the top that end in many-fingered "hands". It is unique among corals because of its ability to use its "hands" to "pulse" or push water away from the colony in a constant, grabbing motion. Common names include fast-pulse Xenia. Species of Xenia are sometimes referred to as pulse corals. Species The World Register of Marine Species lists the following species: *''Xenia actuosa'' Verseveldt & Tursch, 1979 *'' Xenia amparoi'' Roxas, 1933 *'' Xenia antarctica'' Kükenthal, 1902 *''Xenia bauiana'' May, 1899 *'' Xenia crassa'' Schenk, 1896 *''Xenia crispitentaculata'' Verseveldt, 1977 *'' Xenia cylindrica'' Roxas, 1933 *''Xenia danae'' Verrill, 1869 *''Xenia dayi'' Tixier-Durivault, 1959 *''Xenia delicata'' Roxas, 1933 *''Xenia depressa'' Kükenthal, 1909 *'' Xenia distorta'' Tixier-Durivault, 1966 *''Xenia elongata'' Dana, 1846 *''Xenia fimbriata'' Uti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
