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Zanclus (fish)
The Moorish idol (''Zanclus cornutus'') is a species of marine ray-finned fish belonging to the family Zanclidae. It is the only member of the monospecific genus ''Zanclus'' and the only extant species within the Zanclidae. This species is found on reefs in the Indo-Pacific region. Taxonomy The Moorish idol was first formally described as ''Chaetodon cornutus'' in 1758 by Carl Linnaeus in the 10th edition of the ''Systema Naturae'' with "Indian Seas" given as its type locality. In 1831 Georges Cuvier classified it in the new monospecific genus ''Zanclus''. In 1876 Pieter Bleeker proposed the monotypic family Zanclidae. The Zanclidae is classified within the suborder Acanthuroidei of the order Acanthuriformes. Some authors classify the Moorish idols in the surgeonfish family Acanthuridae but the absence of spines on the caudal peduncle is a clear difference between this species and the surgeonfishes. The Moorish idol is the only extant member of its family, the Zanclidae, making ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii (island)
Hawaii is the List of islands of the United States by area, largest island in the United States, located in the Hawaii, state of Hawaii, the southernmost state in the union. It is the southeasternmost of the Hawaiian Islands, a chain of volcanic islands in the Pacific Ocean, North Pacific Ocean. With an area of , it has 63% of the Hawaiian archipelago's combined landmass. However, it has only 13% of the archipelago's population. The island of Hawaii is the third largest island in Polynesia, behind the North Island, North and South Islands of New Zealand. The island is often referred to as the Island of Hawaii or Hawaii Island to distinguish it from the state. It is also referred to as The Big Island, due to its size relative to the other islands. In Hawaiian language, Hawaiian, the island is sometimes called ''Moku o Keawe''. The word ''keawe'' has several meanings. One definition, "southern cross", is said to be the name of an ancient chief. Another definition is "the bearer". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Relict (biology)
In biogeography and paleontology, a relict is a population or taxon of organisms that was more widespread or more diverse in the past. A relictual population is a population currently inhabiting a restricted area whose range was far wider during a previous geologic epoch. Similarly, a relictual taxon is a taxon (e.g. species or other lineage) which is the sole surviving representative of a formerly diverse group. Definition A relict (or relic) plant or animal is a taxon that persists as a remnant of what was once a diverse and widespread population. Relictualism occurs when a widespread habitat or range changes and a small area becomes cut off from the whole. A subset of the population is then confined to the available hospitable area, and survives there while the broader population either shrinks or evolves divergently. This phenomenon differs from endemism in that the range of the population was not always restricted to the local region. In other words, the species or group did ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preoperculum
This glossary of ichthyology is a list of definitions of terms and concepts used in ichthyology, the study of fishes. A B C D E F G H I J K L M N O P R S T U V W References Further reading * {{Cite book , last1=Moyle , first1=Peter , url=https://books.google.com/books?id=sZYWAQAAIAAJ , title=Fishes: An Introduction to Ichthyology , last2=C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snout
A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the structure is called a muzzle, Rostrum (anatomy), rostrum, beak or proboscis. The wet furless surface around the nostrils of the nose of many mammals is called the rhinarium (colloquially this is the "cold wet snout" of some mammals). The rhinarium is often associated with a stronger sense of olfaction. Variation Snouts are found on many mammals in a variety of shapes. Some animals, including ursines and great cats, have box-like snouts, while others, like shrews, have pointed snouts. Pig snouts are flat and cylindrical. Primates Strepsirrhine primates have muzzles, as do baboons. Great apes have reduced muzzles, with the exception being human beings, whose face does not have protruding jaws nor a snout but merely a human nose. Dogs The muzzle begins at the Stop (dog), stop, just below the eyes, and includes the dog's nose and mouth. In the domestic dog, most of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet, species epithet, or epitheton) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Etymology Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found in most fish, in mammals such as whales, and in extinct ancient marine reptiles such as ichthyosaurs. Most have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of whales to identify individuals in the field. The bones or cartilages that support the dorsal fin in fish are called pterygiophores. Functions The main purpose of the dorsal fin is usually to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin Fins are moving appendages protruding from the body of fish that interact with water to ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek Language
Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek Dark Ages, Dark Ages (), the Archaic Greece, Archaic or Homeric Greek, Homeric period (), and the Classical Greece, Classical period (). Ancient Greek was the language of Homer and of fifth-century Athens, fifth-century Athenian historians, playwrights, and Ancient Greek philosophy, philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Homeric Greek, Epic and Classical periods of the language, which are the best-attested periods and considered most typical of Ancient Greek. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Colonisation Of Southeast Asia
The first phase of European colonization of Southeast Asia took place throughout the 16th and 17th centuries. Where new European powers competing to gain monopoly over the spice trade, as this trade was very valuable to the Europeans due to high demand for various spices such as black pepper, pepper, cinnamon, nutmeg, and clove, cloves. This demand led to the arrival of Portuguese Empire, Portuguese, Spanish Empire, Spanish, Dutch Empire, Dutch, French colonial empire, French, and British Empire, British marine spice traders. Fiercely competitive, the Europeans soon sought to eliminate each other by forcibly taking control of the production centres, trade hubs and vital strategic locations, beginning with the Portuguese acquisition of Portuguese Malacca, Malacca in 1511. Throughout the 17th and 18th centuries, conquests focused on ports along the maritime routes, that provided a secure passage of maritime trade. It also allowed foreign rulers to levy taxes and control prices of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Moors
Indian Moors were a grouping of people who existed in Sri Lanka predominantly during its colonial period. They were distinguished by their Muslim faith whose origins traced back to the British Raj. Therefore, Indian Moors refer to a number of ethnic groups such as Memons, Bohra and Khoja. These groups tended to retain their own ancestral practices and language. However the largest specific group were Tamils from South India. Indian Moors shared a similar history to Indian Tamils of Sri Lanka, however due to their decline and smaller numbers the Indian Moors have either returned to India or have declared themselves as being classified as Sri Lankan Moors. History Origins The Indian Moors trace their origins back to immigrants in search of business opportunities during the British colonial period, however some can trace their origins as far back as Portuguese times. They came from various parts of India. Indian Moors have a similar history to that of the Indian Tamils of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sri Lankan Moors
Sri Lankan Moors (; Arwi: ; ; formerly Ceylon Moors; colloquially referred to as Sri Lankan Muslims) are an ethnic minority group in Sri Lanka, comprising 9.3% of the country's total population. Most of them are native speakers of the Tamil language. The majority of Moors who are not native to Sri Lanka's Northern Province, Sri Lanka, Northern and Eastern Province, Sri Lanka, Eastern provinces also speak Sinhala language, Sinhalese as a second language. They are predominantly followers of Islam. The Sri Lankan Muslim community is mostly divided between Sri Lankan Moors, Indian Moors, Sri Lankan Malays and Sri Lankan Dawoodi Bohra, Bohras. These groups are differentiated by lineage, language, history, culture and traditions. The Sri Lankan Moors are of diverse origins with some tracing their ancestry to Arabs, Arab traders who first settled in Sri Lanka around the 9th century, and who intermarried with local Tamil and Sinhala women. Recent genetic studies, however, have suggested a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazigh
Berbers, or the Berber peoples, also known as Amazigh or Imazighen, are a diverse grouping of distinct ethnic groups indigenous to North Africa who predate the arrival of Arabs in the Maghreb. Their main connections are identified by their usage of Berber languages, most of them mutually unintelligible, which are part of the Afroasiatic language family. They are indigenous to the Maghreb region of North Africa, where they live in scattered communities across parts of Morocco, Algeria, Libya, and to a lesser extent Tunisia, Mauritania, northern Mali and northern Niger. Smaller Berber communities are also found in Burkina Faso and Egypt's Siwa Oasis. Descended from Stone Age tribes of North Africa, accounts of the Imazighen were first mentioned in Ancient Egyptian writings. From about 2000 BC, Berber languages spread westward from the Nile Valley across the northern Sahara into the Maghreb. A series of Berber peoples such as the Mauri, Masaesyli, Massyli, Musulamii, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
