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Apolemichthys Xanthurus
''Apolemichthys xanthurus'', the Indian yellowtail angelfish, is a species of marine angelfish belonging to the family Pomacanthidae. Other common names include cream angelfish, smoke angelfish, and yellowtail black angelfish. It is found in the Indian Ocean. Description ''Apolemichthys xanthurus'' Has a body which has a cream background colour with a network of dark lines on the scales creating a lattice pattern over this. The edges of the body are a solid dark colour. The caudal fin is bright yellow while the dorsal and anal fins are black with a white margin. Like they closely related, Apolemichthys xanthotis this species has a yellow spot on the upper preoperculum but the black on the head does not extend as far as this spot so it contrasts less with its background. The juveniles have a wide black band running over the eye and an oblique are of black on the back, this patch fades as the fish matures. The dorsal fin contains 14 spines and 17-19 soft rays while the anal fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least Concern
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evalua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishkeeping
Fishkeeping is a popular hobby, practiced by aquarists, concerned with keeping fish in a home aquarium or garden pond. There is also a piscicultural fishkeeping industry, serving as a branch of agriculture. Origins of fishkeeping Fish have been raised as food in pools and ponds for thousands of years. Brightly colored or tame specimens of fish in these pools have sometimes been valued as pets rather than food. Many cultures, ancient and modern, have kept fish for both functional and decorative purposes. Ancient Sumerians kept wild-caught fish in ponds, before preparing them for meals. Depictions of the sacred fish of Oxyrhynchus kept in captivity in rectangular temple pools have been found in ancient Egyptian art. Similarly, Asia has experienced a long history of stocking rice paddies with freshwater fish suitable for eating, including various types of catfish and cyprinid. Selective breeding of carp into today's popular and completely domesticated koi and fancy gold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apolemichthys Trimaculatus
''Apolemichthys trimaculatus'', the threespot angelfish or flagfin angelfish, is a demersal marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It has a wide Indo-Pacific distribution. Description ''Apolemichthys trimaculatus'' is a bright yellow species of angelfish which has blue lips, a wide black margin to the anal fin, a black spot on the forehead and a faint spot just to the rear of the operculum. The juveniles do not have the spots and show a thin black band running vertically through the eye and vertical golden barring on the flanks. The dorsal fin contains 14 spines and 16-18 soft rays while the anal fin has 3 spines and 17-19 soft rays. This species attains a maximum total length of . Distribution ''Apolemichthys trimaculatus'' is widely distributed throughout the tropical waters of the Indian Ocean from the coast of East Africa between Tanzania and Mozambique to the western Pacific Ocean where it reaches as Far East as Samoa, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apolemichthys Xanthotis
''Apolemichthys xanthotis'', the yellow-ear angelfish or Red Sea angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. Description ''Apolemichthys xanthotis'' has a largely white coloured body with a black head, a yellow tail. The dorsal and anal fins are black with white margins. The black on the head is more extensive than in the closely related ''Apolemichthys xanthotis'' extending across the Gill cover and over the first few scale rows on the body. This contrasts with the yellow spot on the upper preoperculum. The juveniles have a wide black band running over the eye and an oblique are of black on the back, this patch fades as the fish matures. This species attains a maximum total length of . Distribution ''Apolemichthys xanthotis'' is found in the northwestern Indian Ocean in the Red Sea, Gulf of Aden, the Arabian Sea and the Persian Gulf. It is also found off Socotra and a transient population was discovered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopatric
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apolemichthys Griffisi
''Apolemichthys griffisi'', or Griffis angelfish, is a species of ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Pacific Ocean. It is a rarity for the species to enter the aquarium trade. Description ''Apolemichthys griffisi'' has a rather greyish white or ash coloured body with a wide. black band extending from the head as far as the ventral part of the caudal peduncle, within this lies a contrasting white band. There is a large black spot on the head above the eye. The dorsal fin is largely black and the anal and pelvic fins are white. The juveniles lack the white stripe within the black band. The dorsal fin contains 14 spines and 18 soft rays while the anal fin has 3 spines and 18 soft rays. This species attains a maximum total length of . Distribution ''Apolemichthys griffisi'' has a wide distribution which extends from Southeast Asia east to the Line Islands, where it has been recorded with certainty from Kiribati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apolemichthys
''Apolemichthys'' is a genus of marine angelfishes in the family (biology), family Pomacanthidae. Species Fishbase still has ''Apolemichthys armitagei'' listed as a species within this genus but notes that it is a Hybridisation (biology), hybrid between ''Apolemichthys trimaculatus'' and ''Apolemichthys xanthurus''. Fishbase state that the page will be removed as part of their next update. References File:Apolemichthys kingi P8036638.JPG, Tiger Angelfish at Chain reef, Durban {{Taxonbar, from=Q597039 Pomacanthidae Marine fish genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet or species epithet) 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". 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 specific the proper term fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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