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Redtail Butterflyfish
__NOTOC__ The red-tailed butterflyfish (''Chaetodon collare''), also known as the brown butterflyfish, Pakistani butterflyfish or redtail butterflyfish , is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It can be found in reefs of the Indo-west Pacific region: from the Persian Gulf and Maldives to Japan, the Philippines and Indonesia. It usually swims at depths of between 3 and 15 m. It can grow to 18 cm (over 7 in) in length. The red-tailed butterflyfish is brown to black, with lighter scales giving it a spotted appearance. It has a prominent, vertical white streak behind the eyes, a dark stripe over the eyes, and another, smaller white stripe in front of the eyes. The base of the tail is bright red, followed by a black stripe. The tip of the tail is diffuse white. In the wild, its diet consists of coral polyps. In captivity, it is a carnivore, taking fish meat and shrimp. Systematics It belongs to the large subgenus ''Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcus Elieser Bloch
Marcus Elieser Bloch (1723–1799) was a German physician and naturalist who is best known for his contribution to ichthyology through his multi-volume catalog of plates illustrating the fishes of the world. Brought up in a Hebrew-speaking Jewish family, he learned German and Latin and studied anatomy before settling in Berlin as a physician. He amassed a large natural history collection, particularly of fish specimens. He is generally considered one of the most important ichthyology, ichthyologists of the 18th century, and wrote many papers on natural history, comparative anatomy, and physiology. Life Bloch was born at Ansbach in 1723 where his father was a Torah writer and his mother owned a small shop. Educated at home in Hebrew literature he became a private tutor in Hamburg for a Jewish surgeon. Here he learned German, Latin and anatomy. He then studied medicine in Berlin and received a doctorate in 1762 from Frankfurt (Oder), Frankfort on the Oder with a treatise on skin dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Polyp
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequence
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatric
In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and do no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mailed Butterflyfish
The mailed butterflyfish (''Chaetodon reticulatus''), also known as the reticulated butterflyfish or black butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae, This species is found on reefs in the central and western Pacific Ocean. It can be found in the aquarium trade. Description The mailed butterflyfish is a relatively dull-coloured species of butterflyfish and it has a mainly blackish body with light grey centres to the scales and a pale back. It has a broad vertical band with yellow edges which runs through the eye with a broad, white vertical band behind that. The dorsal fin is white, the anal fin. The caudal peduncle is black, while the caudal fin is whitish blue with a yellow band on the margin which itself has a black submargin. The tail of juveniles is transparent. The dorsal fin has 12-13 spines and 23-29 soft rays, while the anal fin has 3 spines and 20-22 soft rays. This species attains a maximum total lengt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Friedrich Burdach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raccoon Butterflyfish
The raccoon butterflyfish (''Chaetodon lunula''), also known as the crescent-masked butterflyfish, lunule butterflyfish, halfmoon butterflyfish, moon butterflyfish, raccoon butterfly, raccoon, raccoon coralfish, and redstriped butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indian and Pacific Oceans. Taxonomy ''Chaetodon lunula'' was first formally described as ''Pomacentrus lunula'' in 1802 by the french naturalist Bernard Germain de Lacépède (1756-1825) with the type locality given as "the Indian Ocean". It belongs to the large subgenus ''Rabdophorus'' which might warrant recognition as a distinct genus. In this group, its closest relative is probably the very similar Red Sea raccoon butterflyfish or diagonal butterflyfish, ''C. fasciatus''. Other close relatives appear to be the black butterflyfish, '' C. flavirostris''), Philippine butterflyfish, ''C. adiergastos'', and perhaps also t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philippine Butterflyfish
The Philippine butterflyfish (''Chaetodon adiergastos''), the Bantayan butterflyfish or panda butterflyfish,, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the western Pacific, from the Ryukyu Islands and Taiwan to Java and northwestern Australia. It grows to a maximum length of 20 cm (nearly 8 in). The body is white with diagonal brown stripes on the sides. The dorsal, caudal, anal and pelvic fins are yellow. There are rounded broad black bands on the face, covering the eye, but not continuous from one side of the body to the other but with a separate black spot centered on the forehead. The Philippine butterflyfish was first formally described in 1910 by the American ichthyologist Alvin Seale (1871-1958) with the type locality given as Bantayan Island in the Philippines. It belongs to the large subgenus ''Rabdophorus'' which might warrant recognition as a distinct genus. In this group, it appears to bel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diagonal Butterflyfish
The diagonal butterflyfish (''Chaetodon fasciatus''), also known as the Red Sea raccoon butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Red Sea and western Indian Ocean. Description The diagonal butterflyfish has a yellow body marked with 11 diagonal stripes. On the head there is a vertical black band through the eye and an incomplete white band on the forehead. The dorsal, anal, and caudal fins are yellow. This species attains a maximum total length of . Distribution The diagonal butterflyfish is found in the northwestern Indian Ocean. It has been recorded from the Red Sea and the Gulf of Aden south as far as Kenya. Habitat and biology Diagonal butterflyfish are found over and around corals, on which they feed. They have also been observed feeding on gelatinous zooplankton, such as jellyfish (Scyphozoa) and comb jellies ( Ctenophora). Systematics The diagonal butterflyfish was first formally d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Butterflyfish
The Black Butterflyfish (''Chaetodon flavirostris''), also known as the dusky butterflyfish, is a species of marine ray-finnedfish, a butterflyfish belonging to the family Chaetodontidae. It is native to the Pacific Ocean. Description The black butterflyfish has a darkish bluish-grey body with a contrasting white mouth, and a narrow yellow band on its snout. There is a dark darker bump on the forehead. The dorsal, anal, and caudal fins are yellow. There is an orange band which runs across the dorsal and anal fins and across the caudal peduncle, these fins also have black margins, as does the tail. Juveniles have paler grey bodies and yellow median fins. The dorsal fin has 12-13 spines and 24-27 soft rays while the anal fin has 3 spines and 20-21 soft rays. This species reaches a maximum total length of . Distribution The black butterflyfish is found in the southern Pacific Ocean where it occurs from the Great Barrier Reef and New South Wales, Lord Howe Island east as far as Eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raccoon
The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of . Its grayish coat mostly consists of dense underfur, which insulates it against cold weather. Three of the raccoon's most distinctive features are its extremely dexterous front paws, its facial mask, and its ringed tail, which are themes in the mythologies of the indigenous peoples of the Americas relating to the animal. The raccoon is noted for its intelligence, as studies show that it is able to remember the solution to tasks for at least three years. It is usually nocturnal and omnivorous, eating about 40% invertebrates, 33% plants, and 27% vertebrates. The original habitats of the raccoon are deciduous and mixed forests, but due to their adaptability, they have extended their range to mountainous areas, coastal marshes, and urban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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