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Hexabranchidae
Hexabranchidae is a monotypic family of colorful nudibranchs (often called "sea slugs") which contains only a single genus ''Hexabranchus'', with two species, and has no subfamilies. This family is one of the many families of dorid nudibranchs in the suborder Doridina, named after Doris, who was a sea nymph in ancient Greek mythology. The genus contains one of the largest known species of nudibranch in the world, '' H. sanguineus'', which grows up to or exceeding 40 cm in length. This species is known to use chemical defenses derived from the sponge it eats and use the chemical compounds to defend itself from potential fish predators. Species There are two species within the genus ''Hexabranchus'':Valdés Á. (2002). "How many species of ''Hexabranchus'' (Opisthobranchia : Dorididae) are there?". ''Molluscan Research'' 22(3): 289-301. PDF * ''Hexabranchus morsomus'' Ev. Marcus & Er. Marcus, 1962 * ''Hexabranchus sanguineus The Spanish dancer, scientific name ''Hexa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexabranchus Morsomus
''Hexabranchus morsomus'', also known as the "Caribbean Spanish Dancer", is a species of sea slug, a marine mollusc in the family Hexabranchidae.PNAS''Nudibranch Taxonomy'' accessed 1 January 2014.Gofas, S. (2013). Hexabranchus morsomus Ev. Marcus & Er. Marcus, 1962. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=549228 on 2014-01-01 Distribution It occurs in the Caribbean Sea including waters around St. Kitts and the Netherlands Antilles,Rudman W. B. (2002, September 8"''Hexabranchus morsomus'' Marcus, 1962" Sea Slug Forum. Australian Museum, Sydney, accessed 22 October 2016. and has also been identified in Honduras, Panama, Costa Rica, Venezuela, St. Lucia, Martinique, Antigua, Grenada, St. Vincent & the Grenadines, Trinidad & Tobago,Valdés, Ángel; Hamann, Jeff; Behrens, David W.; DuPont, Anne. ''Caribbean Sea Slugs'', Sea Challengers Natural History Books, Etc., Gig Harbor, Washington 2006, pp. 116-117. Aruba, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexabranchus Sanguineus
The Spanish dancer, scientific name ''Hexabranchus sanguineus'' (literally meaning "blood-colored six-gills"), is a dorid nudibranch, a very large and colorful sea slug, a marine gastropod mollusk in the family Hexabranchidae. Description The Spanish dancer is a large dorid nudibranch which can grow up to a maximum length of 60 cm.DELUNEL Anthony, WARREN Lindsay, COROLLA Jean-Pierre, MITEL Cédric, in : DORIS, 17/7/2014 : Hexabranchus sanguineus (Rüppell et Leuckart, 1830) However, the commonly observed size is between 20 and 30 cm long. Its body coloration is generally orange-red speckled with multiple small white dots but it also can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bali
Bali () is a province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller neighbouring islands, notably Nusa Penida, Nusa Lembongan, and Nusa Ceningan to the southeast. The provincial capital, Denpasar, is the most populous city in the Lesser Sunda Islands and the second-largest, after Makassar, in Eastern Indonesia. The upland town of Ubud in Greater Denpasar is considered Bali's cultural centre. The province is Indonesia's main tourist destination, with a significant rise in tourism since the 1980s. Tourism-related business makes up 80% of its economy. Bali is the only Hindu-majority province in Indonesia, with 86.9% of the population adhering to Balinese Hinduism. It is renowned for its highly developed arts, including traditional and modern dance, sculpture, painting, leather, metalworking, and music. The Indonesian International Film Festival is held every year in Bal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolph Bergh
Rudolph Bergh (15 October 1824 – 20 July 1909), full name Ludvig Sophus Rudolph Bergh, was a Danish physician and malacologist. He worked in Copenhagen. As a doctor his speciality was sexually transmitted diseases. In Copenhagen a hospital and a street are named after him. Bergh was also an active malacologist, i.e. a zoologist who studies molluscs, in particular the nudibranchs, shell-less marine gastropods. He had well over 90 publications in this field and took part in a scientific expedition to Indonesia. He named and described numerous species of nudibranchs. Biography Rudolph Bergh was born in Copenhagen. His father was chief physician in the army Ludvig Anton Berg (1793–1853). His mother was Anne Sophie Kirstine (maiden name Pedersen). Bergh graduated from the Det von Westenske Institut in 1842, and received his medical degree in 1849. Dr. Rudolph Bergh became an attending physician at what was then Almindeligt Hospital, the general hospital in Amaliegade, Copen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Gottfried Ehrenberg
Christian Gottfried Ehrenberg (19 April 1795 – 27 June 1876) was a German naturalist, zoologist, comparative anatomist, geologist, and microscopist. Ehrenberg was an evangelist and was considered to be of the most famous and productive scientists of his time. Early collections The son of a judge, Christian Gottfried Ehrenberg was born in Delitzsch, near Leipzig. He first studied theology at the University of Leipzig, then medicine and natural sciences in Berlin and became a friend of the famous explorer Alexander von Humboldt. In 1818, he completed his doctoral dissertation on fungi, ''Sylvae mycologicae Berolinenses.'' In 1820–1825, on a scientific expedition to the Middle East with his friend Wilhelm Hemprich, he collected thousands of specimens of plants and animals. He investigated parts of Egypt, the Libyan Desert, the Nile valley and the northern coasts of the Red Sea, where he made a special study of the corals. Subsequently, parts of Syria, Arabia and Abyss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') 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". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...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] |
Doris (mythology)
Doris (; Ancient Greek: Δωρίς/Δωρίδος means 'bounty'), in Greek mythology, was a sea goddess. She was one of the 3,000 Oceanids, daughters of the Titans Oceanus Aelian, ''De Natura Animalium'' 14.28 and Tethys. Etymology Her name is connected with two words: ''Dôron'' meaning "gift" or "abundance," and ''Zôros'', meaning the "pure" and "unmixed." Zôros was often used to describe fresh water or, in terms of the teachings of the day, the pure soul of a woman, and from this derived words such as zôrua "the transference of running water" and zôrux "water conduit." Function When not associated with a god, Doris represented the fertility of the ocean, goddess of the rich fishing-grounds found at the mouths of rivers where fresh water mingled with the brine. Being an Oceanid meant she was a sister of the river gods. Family By her husband Nereus, Doris was mother to Nerites and the fifty Nereids, including Thetis, Amphitrite and Galatea. Namesake Doris Cove in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Defenses
Chemical defense is a life history strategy employed by many organisms to avoid consumption by producing toxic or repellent metabolites or chemical warnings which incite defensive behavioral changes. The production of defensive chemicals occurs in plants, fungi, and bacteria, as well as invertebrate and vertebrate animals. The class of chemicals produced by organisms that are considered defensive may be considered in a strict sense to only apply to those aiding an organism in escaping herbivory or predation. However, the distinction between types of chemical interaction is subjective and defensive chemicals may also be considered to protect against reduced fitness by pests, parasites, and competitors. Repellent rather than toxic metabolites are allomones, a sub category signaling metabolites known as semiochemicals. Many chemicals used for defensive purposes are secondary metabolites derived from primary metabolites which serve a physiological purpose in the organism. Secondary me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponge
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
