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Parancistrus
''Parancistrus'' is a small genus of suckermouth armored catfishes native to South America. Taxonomy Three species - ''Hypostomus aurantiacus'', ''H. nigricans'' and ''H. vicinus'' - were described by François Louis de la Porte, comte de Castelnau in 1855. ''Parancistrus'' was described by Pieter Bleeker in 1862 and ''P. aurantiacus'' designated as type. Later, ''P. nigricans'' and ''P. vicinus'' were deemed to be synonyms of ''P. aurantiacus'', making ''P. aurantiacus'' the only species of ''Parancistrus'' until ''P. nudiventris'' was described in 2005. Species There are currently two recognized species in this genus: * ''Parancistrus aurantiacus'' ( Castelnau, 1855) * ''Parancistrus nudiventris'' Rapp Py-Daniel & Zuanon, 2005 Appearance and anatomy ''Parancistrus'' is unique among loricariids due to the presence of fleshy folds on the naked area around the dorsal fin and at the pectoral fin points insertion in the breeding males. Breeding males also have elongated odontode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parancistrus Nudiventris
''Parancistrus nudiventris'' is a species of armored catfish endemic to Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ... where it occurs in the Xingu River. This species grows to a length of SL.Rapp Py-Daniel, L.H. and J. Zuanon 200''Description of a new species of'' Parancistrus ''(Siluriformes: Loricariidae) from the rio Xingu, Brazil.'' Neotrop. Ichthyol. 3(4):571-577. References * Ancistrini Fish of South America Fish of Brazil Endemic fauna of Brazil Fish described in 2005 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parancistrus Aurantiacus
''Parancistrus aurantiacus'' is a species of armored catfish Armoured catfish may refer to: *Family Loricariidae: The armoured suckermouth catfish, also known as suckermouth catfish, armoured catfish or simply 'plecs' or 'plecos' *Family Callichthyidae: armoured catfish, includes the genera **''Corydoras'', ... native to Brazil and Peru, where it is found in the Ucayali, Tocantins and Xingu Rivers. This species grows to a length of SL. References * Ancistrini Fish of South America Fish of Brazil Fish of Peru Fish described in 1855 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrini
Ancistrini is a tribe of catfishes of the family Loricariidae. Most are restricted to tropical and subtropical South America, but there are also several genus (''Ancistrus'', ''Chaetostoma'', '' Hemiancistrus'' and '' Lasiancistrus'') in southern Central America. Taxonomy Ancistrini have previously been considered a loricariid subfamily. However, the subfamily Hypostominae would be paraphyletic if Ancistrinae continued to be recognized. To continue recognizing the monophyly of this group while returning it to Hypostominae, Hypostominae was broken into several tribes. Pterygoplichthyini is sister to the tribe Ancistrini, which shares the derived presence of an evertible patch of plates on the cheek. Description Most Ancistrini species (except for some '' Pseudancistrus'' and '' Spectracanthicus'') can be separated from all other loricariids except the Pterygoplichthyini by the presence of evertible cheek plates with hypertrophied odontode Odontodes, or dermal teeth, are hard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Bleeker
Pieter Bleeker (10 July 1819 – 24 January 1878) was a Dutch medical doctor, ichthyologist, and herpetologist. He was famous for the ''Atlas Ichthyologique des Indes Orientales Néêrlandaises'', his monumental work on the fishes of East Asia published between 1862 and 1877. Life and work Bleeker was born on 10 July 1819 in Zaandam. He was employed as a medical officer in the Royal Netherlands East Indies Army from 1842 to 1860, (in French). stationed in the Dutch East Indies (now Indonesia). During that time, he did most of his ichthyology work, besides his duties in the army. He acquired many of his specimens from local fishermen, but he also built up an extended network of contacts who would send him specimens from various government outposts throughout the islands. During his time in Indonesia, he collected well over 12,000 specimens, many of which currently reside at the Naturalis Biodiversity Center in Leiden. Bleeker corresponded with Auguste Duméril of Paris. His w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adipose Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish Genera
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus '' Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of Brazil
The wildlife of Brazil comprises all naturally occurring animals, plants, and fungi in the South American country. Home to 60% of the Amazon Rainforest, which accounts for approximately one-tenth of all species in the world, Brazil is considered to have the greatest biodiversity of any country on the planet. It has the most known species of plants (55,000), freshwater fish (3,000), and mammals (over 689). It also ranks third on the list of countries with the most bird species (1,832) and second with the most reptile species (744). The number of fungal species is unknown but is large.Da Silva, M. and D.W. Minter. 1995. ''Fungi from Brazil recorded by Batista and Co-workers''. Mycological Papers 169. CABI, Wallingford, UK. 585 pp. Approximately two-thirds of all species worldwide are found in tropical areas, often coinciding with developing countries such as Brazil. Brazil is second only to Indonesia as the country with the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of South America
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinelepis
''Rhinelepis'' is a genus of South American armored catfish. Species There are currently two recognized species in this genus: * ''Rhinelepis aspera'' Spix & Agassiz, 1829 * ''Rhinelepis strigosa ''Rhinelepis strigosa'' is a species of armored catfish Armoured catfish may refer to: *Family Loricariidae: The armoured suckermouth catfish, also known as suckermouth catfish, armoured catfish or simply 'plecs' or 'plecos' *Family Callichthyid ...'' Valenciennes, 1840 Appearance and anatomy ''Rhinelepis'' species are large and heavily plated, though the plates on the abdomen (belly) develop later than in '' Pseudorinelepis''. They are generally charcoal gray without any markings. The head is long and fat. The fins are short and the adipose fin is entirely absent. The gill opening is much larger than that of most loricariids. The cheeks lack elongate odontodes. References Hypostominae Fish of South America Catfish genera Taxa named by Louis Agassiz {{Loricari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pogonopoma
''Pogonopoma'' is a genus of armored catfish native to rivers in south and southeast Brazil. Taxonomy ''Pogonopoma'' is one of three genera currently valid in the tribe Rhinelepini. ''Pogonopomoides'', previously a valid genus, was placed in synonymy with ''Pogonopoma''. This genus and ''Rhinelepis'' have a sister group relationship. Species There are currently three recognized species in this genus: * ''Pogonopoma obscurum'' Quevedo & R. E. dos Reis, 2002 * ''Pogonopoma parahybae'' (Steindachner, 1877) * ''Pogonopoma wertheimeri'' (Steindachner, 1867) Appearance and anatomy As loricariids, ''Pogonopoma'' species all exhibit a suckermouth and an at least slightly flattened ventral surface. However, unlike many loricariids, they have circular pupils, which differs from most members of the family that have an omega iris. ''Pogonopoma'' species are heavily armored except on their abdomen (the belly in the case of loricariids), which is relatively unplated. ''P. wertheimeri'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill
A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (pl. branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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