Trichomycterus is a genus of fish in the familyTrichomycteridae, the largest genus of its family with over 170 species currently described. This genus is native to freshwater habitats in Central and South America.[1] These fish are generally small, usually about 5 to 15 cm (2–6 in) in standard length, although the largest, T. rivulatus, can reach more than twice this size.[1] Species differ from one another primarily in body proportions, fin ray counts and colouration.[2] Despite their relatively small size, some, such as T. punctulatus, support fisheries and are important in the local cuisine.[3]
Taxonomy
This genus is defined by the lack of specializations found in other trichomycterids and is certainly polyphyletic.[4][5] Although known to contain many species, Trichomycterus is poorly known with many of the known species based on brief descriptions.[4] Many species have been described recently and many more are waiting to be described.[6]
Some authors have tentatively defined putative monophyletic assemblages within the genus Trichomycterus based on the possession of unique morphological features.[4] The Trichomycterus brasiliensis species-complex includes T. brasiliensis, T. iheringi, T. maracaya, T. mimonha, T. pirabitira, T. potschi, T. vermiculatus and several undescribed species apparently endemic to the main river basins draining the Brazilian Shield.[7] However, an assemblage of species from south and southeastern Brazil is also supported that includes T. araxa,[8]T. castroi, T. davisi, T. guaraquessaba, T. immaculatus, T. itatiayae, T. mboycy, T. mirissumba, T. naipi, T. nigricans, T. papilliferus, T. plumbeus, T. stawiarski, T. taroba, T. triguttatus and T. zonatus,[5]T. aguarague, T. alterus, T. belensis, T. boylei and T. ramosus also form a diagnosable species assemblage.[2]
Distribution and habitat
Species of Trichomycterus inhabit a diversity of habitats throughout South and Central America from Costa Rica in the north to Patagonia in the south and from lowland Atlantic rainforest in the east to Andean highland streams in the west.[2] They are, together with Astroblepus and Orestias, among the very few native fish genera at high altitude in the Andes[9] and in some places, for example certain high-elevation localities in western Argentina, Trichomycterus are the only fishes.[10] About 60 nominal species are endemic to the river basins draining the Andes and hills of the Guianan Shield and about 30 species are endemic to river basins draining the Brazilian Shield.[11]
Despite the broad distribution of the genus, most species have limited distributions and usually are restricted to only one river.[12] Wide-ranging species are most likely complexes of species that are difficult to differentiate, such as the T. brasiliensis species-complex.[7]Trichomycterus gorgona, from a small stream on Gorgona Island located west of the Pacific coast of Colombia, is the first known trichomycterid to be endemic to an offshore island.[13] Many species are troglobitic.[14]
Species
There are currently 174 recognized species in this genus:
^Ardila Rodríguez, C.A. (2017): Trichomycterus casitaensis, sp. nov. (Siluriformes: Trichomycteridae) una nueva especie de pez del río Tarra, cuenca alta del río Catatumbo departamento de Norte de Santander – Colombia. Barranquilla, Departamento del Atlántico, 3: 1-23.
^Vilardo PJ, Katz AM, Costa WJEM. 2020. Relationships and description of a new species of Trichomycterus (Siluriformes:
Trichomycteridae) from the Rio Paraíba do Sul basin, south-eastern Brazil. Zool Stud 59:53. doi:10.6620/ZS.2020.59-53
This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Aljaž Lodge in the Vrata Valley – news · newspapers · books · scholar · JSTOR (May 2021) (Learn how and when to remove this template message) Aljaž Lodge in the Vrata ValleyHighest pointElevation1,015 m (3,330 ft)Coordinates46°24′32.544″N 13°50′36.204″...
Telstar 18Adidas Telstar 18TipeBola sepakTahun peluncuran2017 (2017)ProdusenAdidasKetersediaanTersedia Adidas Telstar 18 adalah merek bola sepak yang digunakan pada Piala Dunia FIFA 2018 di Rusia. Bola yang diproduksi oleh Adidas ini didesain berdasarkan konsep bola sepak Adidas Telstar tahun 1970. Bola ini dikenalkan untuk umum di Moskwa, Rusia, pada 9 November 2017. Beberapa pemain sepak bola terkenal ikut menghadiri peluncuran bola ini, di antaranya Lionel Messi, Zinédine Zidane, Kak...
Richard F. HeckHeck pada tahun 2010LahirRichard Fred Heck(1931-08-15)15 Agustus 1931Springfield, Massachusetts, A.S.Meninggal9 Oktober 2015(2015-10-09) (umur 84)Manila, FilipinaTempat tinggalQuezon City, Filipina[1][2]KebangsaanAmerika SerikatAlmamaterUniversitas California, Los AngelesDikenal atasReaksi HeckSuami/istriSocorro Nardo-Heck (meninggal tahun 2012)PenghargaanNobel Kimia (2010)Karier ilmiahBidangKimiaInstitusiUniversitas DelawareHerculesETH ZurichUniversitas D...
Untuk orang lain dengan nama yang sama, lihat Thomas Hyde. Thomas W. HydeLahir(1841-01-16)16 Januari 1841Firenze, ItaliaMeninggal14 Desember 1899(1899-12-14) (umur 58)Fort Monroe, VirginiaTempat pemakamanOak Grove Cemetery, Bath, MainePengabdianAmerika SerikatUnionDinas/cabangAngkatan Darat Amerika SerikatUnion ArmyLama dinas1861 - 1865Pangkat Kolonel Brevet Mayor JenderalKesatuan7th Maine Volunteer Infantry RegimentKomandan1st Maine Veteran Volunteer Infantry RegimentPerang/pertemp...
Kh-35(Nama pelaporan NATO: AS-20 'Kayak')3M24 Uran (SS-N-25 'Switchblade')3K60 Bal (SSC-6 'Sennight') Kh-35E di MAKS-2009 Jenis Peluru kendali udara ke daratPeluru kendali darat ke daratPeluru kendali jelajahPeluru kendali antikapal Negara asal Uni Soviet Sejarah pemakaian Masa penggunaan 2003 Digunakan oleh Angkatan Laut RusiaAngkatan Laut IndiaAngkatan Laut Rakyat Vietnam Sejarah produksi Perancang Zvezda Tahun 1983-2003 Produsen Tactical Missiles Corporation Biaya prod...
Kepresidenan Benggalaবেঙ্গল প্রেসিডেন্সিKepresidenan di India Britania22 Oktober 1765–1947 Panji daerah Coat of arms Kepresidenan Benggala pada masa puncak kejayaannya pada 1858SejarahEra sejarahImperialisme Baru• Pertempuran Buxar 22 Oktober 1765• Reformasi Montagu-Chelmsford 1947 Didahului oleh Digantikan oleh Benggala Subah Benggala Barat Benggala Timur Negeri-Negeri Selat Sekarang bagian dariBangladesh, India, Pakistan, Burma, Singapura ...
Voce principale: Calcio Como. Como Foot-Ball ClubStagione 1912-1913Sport calcio Squadra Como AllenatoreCommissione tecnica Presidente Carlo Verga Promozione5º posto nel girone lombardo. Maggiori presenzeCampionato: Gorio, Taroni (14) Miglior marcatoreCampionato: A. Albonico (10) StadioCampo di via dei Mille 1913-1914 Si invita a seguire il modello di voce Questa pagina raccoglie i dati riguardanti il Como Foot-Ball Club nelle competizioni ufficiali della stagione 1912-1913. Indice 1 St...
Wangsa RasyidAl Rasyid / آل رشيدNegaraEmirat Jabal ShammarDidirikan1834 (1834)PendiriAbdullah bin Ali ar-RasyidPenguasa terakhirMuhammad bin Talal bin Nayef ar-RasyidDibubarkan1921 (1921)EtnisArab Wangsa Rasyid (Arab: آل رشيد Al Rasyid) adalah wangsa yang memerintah Emirat Jabal Shammar pada Abad ke-19, Emirat tersebut berdiri pada tahun 1834 dan wangsa ini memerintah selama 88 tahun hingga awal Abad ke-20 ketika Emirat ini jatuh pada tahun 1921. Saud al-Abdulaziz, E...
Belgian cyclist Olivier KaisenKaisen at the 2007 Eneco Tour.Personal informationFull nameOlivier KaisenBorn (1983-04-30) 30 April 1983 (age 41)[1]BelgiumHeight1.95 m (6 ft 5 in)Weight82 kg (181 lb)Team informationCurrent teamBingoal WBBingoal WB Devo TeamDisciplineRoadRoleRider (retired)Directeur sportifRider typeDomestiqueAmateur teamVC de l'Orne Blanmont[2] Professional teams2005R.A.G.T. Semences2006–2014Davitamon–Lotto Manage...
1662–1665 painting by Johannes Vermeer This article is about the painting by Vermeer. For other uses, see The Music Lesson (disambiguation). The Music LessonLady at the Virginals with a Gentleman, Woman Seated at a VirginalArtistJohannes VermeerYearc. 1662–1665MediumOil on canvasMovementBaroque painting, Dutch Golden Age paintingDimensions74.6 cm × 64.1 cm (29.4 in × 25.2 in)LocationKing's Gallery, LondonOwnerRoyal CollectionAccessionRCIN ...
Mathematical construct in computer algebra In mathematics, and more specifically in computer algebra, computational algebraic geometry, and computational commutative algebra, a Gröbner basis is a particular kind of generating set of an ideal in a polynomial ring K[x1, ..., xn] over a field K. A Gröbner basis allows many important properties of the ideal and the associated algebraic variety to be deduced easily, such as the dimension and the number of zeros when it is finite. Gröbner basis ...
دوقة ساكسونيا القرينة سيبيل من كليفز معلومات شخصية الميلاد 17 يناير 1512 دوسلدورف الوفاة 21 فبراير 1554 (42 سنة) فايمار مكان الدفن كنيسة سان بطرس وبولس [لغات أخرى] مواطنة ألمانيا اللقب دوقة ساكسونيا القرينة الزوج يوهان فريدرش الأول ناخب ساكسونيا...
A lyga 2022Optibet A lyga 2022 Competizione A lyga Sport Calcio Edizione 33ª Organizzatore LFF Date dal 4 marzo 2022all'11 novembre 2022 Luogo Lituania Partecipanti 10 Formula doppio girone di andata e ritorno Risultati Vincitore Žalgiris(10º titolo) Retrocessioni Jonava Statistiche Miglior marcatore Renan (17) Incontri disputati 180 Gol segnati 386 (2,14 per incontro) Cronologia della competizione 2021 2023 Manuale Banga Gargždai Džiugas Telšiai FA Šiauliai Hegelm...
Questa voce sull'argomento calciatori inglesi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Richard RufusNazionalità Inghilterra Altezza185 cm Peso70 kg Calcio RuoloDifensore Termine carriera2004 CarrieraSquadre di club1 1993-2004 Charlton288 (12) 1 I due numeri indicano le presenze e le reti segnate, per le sole partite di campionato.Il simbolo → indica un trasferimento in prestito. ...
Portuguese philosopher For other people with the same name, see Francisco Sanchez (disambiguation). Francisco SanchesFrancisco SanchesBornc. 1550Tui, Kingdom of SpainDiedNovember 16,[3] 1623Toulouse, Kingdom of FranceEducationCollege of GuienneEraRenaissance philosophyRegionWestern philosophySchoolRenaissance skepticism[a]InstitutionsUniversity of ToulouseNotable ideasNothing is known Francisco Sanches (c. 1550 – November 16, 1623) was a skeptic, philosopher and ph...
Chemical rule of thumb This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Octet rule – news · newspapers · books · scholar · JSTOR (October 2023) (Learn how and when to remove this message) The bonding in carbon dioxide (CO2): all atoms are surrounded by 8 electrons, fulfilling the octet rule. The octet rule is...
Cet article est une ébauche concernant une station de métro. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Ueno-Okachimachi Entrée de la station Ueno-Okachimachi Localisation Pays Japon Ville Tokyo Arrondissement Taitō Adresse 5-26-6 Ueno, Taitō-ku, Tokyo Coordonnéesgéographiques 35° 42′ 28″ nord, 139° 46′ 28″ est Géolocalisation sur la carte : Tokyo Caract�...
Pour les articles homonymes, voir Năstase. Ilie Năstase Ilie Nastase lors de la Coupe Davis contre les Pays-Bas, le 18 mai 1973. Carrière professionnelle 1969 (Pro indépendant) et 1974 (Pro) – Octobre 1985 Nationalité Roumanie Naissance 19 juillet 1946 (78 ans)Bucarest Taille 1,80 m (5′ 11″) Prise de raquette Droitier, revers à une main Gains en tournois 2 076 771 $ Hall of Fame Membre depuis 1991 Palmarès En simple Titres 87 dont 58 enregistr...
Species of deer This article is about the species called elk in North America. For the species called elk in Eurasia (Alces alces), see Moose. Elks redirects here. For other uses, see Elks (disambiguation). Wapiti redirects here. For other uses of the names, see Elk (disambiguation) and Wapiti (disambiguation). ElkTemporal range: 2.5–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Early Pleistocene – Recent A bull (male) in Alberta, Canada A cow (female) with calf in Wyoming, United Sta...