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Crenidens Macracanthus
''Crenidens macracanthus'', Günther's karanteen, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This fish is found in the Indian Ocean. Taxonomy ''Crenidens macracanthus'' was first formally described in 1874 by the German-born British herpetologist and ichthyologist Albert Günther with its type locality as Madras in India, on the Bay of Bengal. This taxon was previously treated as a synonym of ''Crenidens crenidens'' but was recognised as a valid species in 2013. The genus ''Crenidens'' is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. Etymology ''Crenidens macracanthus'' has the specific name ''macracanthus'' which means "large spined", a reference to the larger spines in the dorsal and anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert C
Albert may refer to: Companies * Albert Computers, Inc., a computer manufacturer in the 1980s * Albert Czech Republic, a supermarket chain in the Czech Republic * Albert Heijn, a supermarket chain in the Netherlands * Albert Market, a street market in The Gambia * Albert Music, an Australian music company now known as Alberts ** Albert Productions, a record label * Albert (organisation), an environmental organisation concerning film and television productions Entertainment * Albert (1985 film), ''Albert'' (1985 film), a Czechoslovak film directed by František Vláčil * ''Albert'' (2015 film), a film by Karsten Kiilerich * Albert (2016 film), ''Albert'' (2016 film), an American TV movie * Albert (album), ''Albert'' (album), by Ed Hall, 1988 * Albert (short story), "Albert" (short story), by Leo Tolstoy * Albert (comics), a character in Marvel Comics * Albert (Discworld), Albert (''Discworld''), a character in Terry Pratchett's ''Discworld'' series * Albert, a character in Dario A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family is given at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, though the book does generally not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not contain any color illustrations. The fourth edition was the first to inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens
''Crenidens'' is a small genus of three species of seabream from the family Sparidae from the western Indian Ocean. It was previously regarded as monotypic, with the sole species being the Karenteen sea bream '' Crenidens crenidens'' but two other species are now accepted as valid species, separate from the type species, ''C. crenidens''. Taxonomy ''Crenidens'' was first proposed as a monospecific genus in 1830 by the French zoologist Achille Valenciennes with ''Crenidens forsskalii'' as its only species and the type species by monotypy. ''C. forsskalii'' is now considered to be a synonym of ''Sparus crenidens'', originally described by Peter Forsskål from the Red Sea of Saudi Arabia and Egypt in 1775. This genus is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karachi
Karachi is the capital city of the Administrative units of Pakistan, province of Sindh, Pakistan. It is the List of cities in Pakistan by population, largest city in Pakistan and 12th List of largest cities, largest in the world, with a population of over 20 million. It is situated at the Geography of Pakistan, southern tip of the country along the Arabian Sea coast and formerly served as the Federal Capital Territory (Karachi), country's capital from 1947 to 1959. Ranked as a Global city, beta-global city, it is Pakistan's premier industrial and financial centre, with an estimated GDP of over $200 billion (Purchasing power parity, PPP) . Karachi is a metropolitan city and is considered Pakistan's most cosmopolitan city, and among the country's most linguistically, ethnically, and religiously diverse regions, as well as one of the country's most progressive and socially liberal cities. The region has been inhabited for millennia, but the city was formally founded as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chennai
Chennai, also known as Madras (List of renamed places in India#Tamil Nadu, its official name until 1996), is the capital city, capital and List of cities in Tamil Nadu by population, largest city of Tamil Nadu, the southernmost states and territories of India, state of India. It is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Census of India, 2011 Indian census, Chennai is the List of most populous cities in India, sixth-most-populous city in India and forms the List of million-plus urban agglomerations in India, fourth-most-populous urban agglomeration. Incorporated in 1688, the Greater Chennai Corporation is the oldest municipal corporation in India and the second oldest in the world after City of London Corporation, London. Historically, the region was part of the Chola dynasty, Chola, Pandya dynasty, Pandya, Pallava dynasty, Pallava and Vijayanagara Empire, Vijayanagara kingdoms during various eras. The coastal land which then contained th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Length
Fish measurement is the measuring of individual fish and various parts of fish anatomy, their anatomies, for data used in many areas of ichthyology, including Taxonomy (biology), taxonomy and fishery biology. Overall length Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the Glossary of ichthyology#H, hypural plate. This measurement excludes the length of the caudal fin, caudal (tail) fin. Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most Actinopterygii, bony fish), while total length measurements are used with Myxini (hagfish), Petromyzontiformes (lampreys) and usually Elasmobranchii (shark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crenidens Indicus
''Crenidens indicus''. Day's karanteen bream, is a species of marine ray-finned fish belonging to the family Sparidae, which includes the seabreams and porgies. This species is found in the Indian Ocean. Taxonomy ''Crenidens indicus'' was first formally described in 1873 by the English zoologist Francis Day with its type locality given as the northern Indian Ocean. This taxon was previously treated as a subspecies of ''Crenidens crenidens'' but was recognised as a valid species in 2013. The genus ''Crenidens'' is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Boopsinae, but the 5th edition of Fishes of the World does not recognise subfamilies within the Sparidae. Description ''Crenidens indicus'' has a dorsal fin which is supported by 11 spines and 11 soft rays while the anal fin contains3 spines and 10 soft rays. The shape of the body is a slightly compressed oblong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines play an important role in schooling behavior, predation, and orientation. Early in the evolution of fish, some of the sensory organs of the lateral line were modified to function as the electroreceptors called ampullae of Lorenzini. The lateral line system is ancient and basal to the vertebrate clade, as it is found in fishes that diverged over 400 million years ago. Function The lateral line system allows the detection of movement, vibration, and pressure gradients in the water surrounding an animal. It plays an essential role in orientation, predation, and fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incisor
Incisors (from Latin ''incidere'', "to cut") are the front teeth present in most mammals. They are located in the premaxilla above and on the mandible below. Humans have a total of eight (two on each side, top and bottom). Opossums have 18, whereas armadillos, anteaters and other animals in the order Edentata have none. Structure Adult humans normally have eight incisors, two of each type. The types of incisors are: * maxillary central incisor (upper jaw, closest to the center of the lips) * maxillary lateral incisor (upper jaw, beside the maxillary central incisor) * mandibular central incisor (lower jaw, closest to the center of the lips) * mandibular lateral incisor (lower jaw, beside the mandibular central incisor) Children with a full set of deciduous teeth (primary teeth) also have eight incisors, named the same way as in permanent teeth. Young children may have from zero to eight incisors depending on the stage of their tooth eruption and tooth development. Typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congener (biology)
Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organisms or constituents of living organisms of being special or doing something special. Each animal or plant species is special. It differs in some way from all other species...biological specificity is the major problem about understanding life." Biological specificity within ''Homo sapiens'' ''Homo sapiens'' has many characteristics that show the biological specificity in the form of behavior and morphology (biology), morphological traits. Morphologically, humans have an enlarged cranial capacity and more gracile features in comparison to other Hominini, hominins. The reduction of dentition is a feature that allows for the advantage of adaptability in diet and survival. As a species, humans are culture dependent and much of human survival ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish ( Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish ( Chondrichthyes) and jawless fish ( Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are pr ... [...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] |
