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Acrochordonichthys Falcifer
''Acrochordonichthys falcifer'' is a species of catfish of the family Akysidae. It' is known only from the Kinabatangan and Segama River drainages, and possibly from the Kayan River drainage, in north-eastern Borneo. ''A. falcifer'' falls into the second species group of its genus—the ''A. rugosus'' section. It includes ''A. falcifer'', '' A. chamaeleon'', '' A. pachyderma'', and '' A. rugosus''.Ng, H. H.; Ng, P. K. L. (2001). "A revision of the akysid catfish genus ''Acrochordonichthys'' Bleeker". Journal of Fish Biology 58 (2): 386–418. Description ''A. falcifer'' can be differentiated from other members of the species group by an adipose fin with a rounded (vs. angular) posterior margin and a longer dorsal-fin base (10.8–13.1% standard length vs. 7.9–10.5); generally the colour pattern of ''A. falcifer'' is also different in having many small blotches (vs. few large blotches) of various shades of brown, with many small dark brown spots (vs. no spots) on the dorsal su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ng Heok Hee
Heok Hee Ng is a Singaporean ichthyologist and researcher of biodiversity at the Lee Kong Chian Natural History Museum of the National University of Singapore. He specialises in Asian catfish systematics with particular focus on sisoroid catfishes. As of 2018, Ng authored 14 species of Siluriformes Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are named for their prominent barbels, which resemble a cat's whiskers, though not all catfish have prominent barbels or "whis ... Publications Ng has (co-)authored many publications. See Wikispecies below. Taxon described by him *See :Taxa named by Heok Hee Ng References External links * Living people Taxon authorities Singaporean ichthyologists Year of birth missing (living people) {{Singapore-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrochordonichthys Chamaeleon
''Acrochordonichthys chamaeleon'' is a species of catfish of the family Akysidae. This species is endemic to Indonesia and is only known from the Kapuas River drainage, West Kalimantan (Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...). References Akysidae Endemic fauna of Borneo Freshwater fish of Borneo Fish described in 1902 {{Siluriformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Borneo
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish Of East Malaysia
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include non-salty mineral water, mineral-rich waters, such as chalybeate springs. Fresh water may encompass frozen water, frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ice pellets, sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranea (geography), subterranean subterranean river, rivers and underground lake, lakes. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spine (zoology)
In a zoological context, spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species. The spines of most spiny mammals are modified hairs, with a spongy center covered in a thick, hard layer of keratin and a sharp, sometimes barbed tip. Occurrence Mammals Spines in mammals include the prickles of hedgehogs, and among rodents, the quills of porcupines (of both the New World and the Old), as well as the prickly fur of spiny mice, spiny pocket mice, and of species of spiny rat. They are also found on afrotherian tenrecs of the family Tenrecinae (hedgehog and streaked tenrecs), marsupial spiny bandicoots, and on echidnas (a monotreme). An ancient synapsid, ''Dimetrodon'', had extremely long spines on its backbone that were joined together with a web of skin that formed a sail-like structure. Many mammalian species, like cats and fossas, also have penile spines. The Mesozoic eutriconodont mammal '' Spinolestes'' already displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adipose 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 predominantly a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrochordonichthys Rugosus
''Acrochordonichthys'' is a genus of catfishes (order (biology), order Siluriformes) of the family (biology), family Akysidae. It includes ten species. Distribution and habitat ''Acrochordonichthys'' species are generally found at the bottoms of rivers throughout Southeast Asia. Many of the species are only known from Borneo. ''A. guttatus'' is known only from the Barito River drainage in southern Borneo. ''A. mahakamensis'' is known only from the Mahakam River drainage in eastern Borneo it is named for. ''A. chamaeleon'' and ''A. strigosus'' are known only from the Kapuas River drainage in western Borneo. ''A. falcifer'' is known only from the Kinabatangan River, Kinabatangan and Segama River drainages, and possibly from the Kayan River drainage, in north-eastern Borneo. ''A. pachyderma'' is known only from the Kapuas, Mahakam, and Kinabatangan River drainages in western, eastern, and north-eastern Borneo, respectively. ''A. septentrionalis'' is known only from the Mae Klong Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrochordonichthys Pachyderma
''Acrochordonichthys pachyderma'' is a species of catfish of the family Akysidae. It is found in Borneo. A detailed discussion of this species's relationship with the other members of its genus can be found on ''Acrochordonichthys ''Acrochordonichthys'' is a genus of catfishes ( order Siluriformes) of the family Akysidae. It includes ten species. Distribution and habitat ''Acrochordonichthys'' species are generally found at the bottoms of rivers throughout Southeast As ...''. References Akysidae Freshwater fish of Indonesia Freshwater fish of Malaysia Endemic fauna of Borneo Fish described in 1902 {{Siluriformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ng Peter Kee Lin
Ng, ng, or NG may refer to: * Ng (name) (吳 黄 伍), (吳 being the most common), a surname of Chinese origin Arts and entertainment * N-Gage (device), a handheld gaming system * Naked Giants, Seattle rock band * '' Spirit Hunter: NG'', a video game Businesses and organizations * Lauda Air (airline code NG) * National Geographic (other) * National Grid plc, a British multinational electricity and gas utility company * National Guard (other) * ''Nederlandse Gidsen'' (Dutch Guides), one of the Scouting organisations that evolved into the national Scouting organisation of the Netherlands * Newgrounds, an American entertainment and social media website and company * Northrop Grumman Corporation, a major United States defense contractor * Notgemeinschaft der Deutschen Wissenschaft, a German scientific society * Network General, a defunct American networking company Language * Ndonga dialect (ISO 639 alpha-2 ng), a dialect of Oshiwambo * Ng (digraph), a pair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneo
Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda Islands, located north of Java Island, Java, west of Sulawesi, and east of Sumatra. The island is crossed by the equator, which divides it roughly in half. The list of divided islands, island is politically divided among three states. The sovereign state of Brunei in the north makes up 1% of the territory. Approximately 73% of Borneo is Indonesian territory, and in the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. The Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo. Etymology When the sixteenth-century Portuguese explorer Jorge de Menezes made contact with the indigenous people of Borneo, they referred to their island as ''Pulu K'lemantang'', which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayan River
The Kayan River is a river of Borneo island, flowing in the North Kalimantan province of Indonesia, about 1,600 km northeast of the capital Jakarta. Course The Kayan is a large river in Borneo. It is one of the largest and most important rivers in the province of Kalimantan Utara. It rises in the northern part of the island's central mountain range in the ''Ukeng Mountains'' and flows in a large delta into the Sulawesi Sea below the provincial capital Tanjung Selor. Geography and hydrology The Kayan River rises on Mount Ukeng, passing Tanjung Selor city, and discharges into the Sulawesi Sea, with a total length of about and a basin size of , forming a wide area at the upstream and narrower in the center until downstream. The Kayan River is named after the Kayan Dayak tribe. Its headwaters originate in the ''Ukeng Mountains'' at an altitude of about above sea level. The river cuts through mountainous areas in a south-east, east-east and then north-east direction with high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
