Molidae

Molidae
Temporal range: Upper Eocene–present[1]
Mola mola
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Suborder: Tetraodontoidei
Family: Molidae
Bonaparte, 1832
Genera[2]

The Molidae comprise the family of the molas or ocean sunfishes, unusual fish whose bodies come to an end just behind the dorsal and anal fins, giving them a "half-fish" appearance. They are also the largest of the ray-finned bony fish, with the southern sunfish, Mola alexandrini, recorded at 4.6 m (15 ft) in length[3] and 2,744 kg (6,049 lb) in weight.

The family name comes from the ocean sunfish's scientific name Mola mola, both its genus name and epithet come from the Latin word mola for "millstone" because of its circular shape.[4]

Description

Sunfish skeleton photographed by Lewis Carroll

Molidae have the fewest vertebrae of any fish, with only 16 in Mola mola. They also completely lack all caudal bones, and most of their skeleton is made of cartilage. No bony plates occur in the skin, which is, however, thick and dense like cartilage and is fairly rough. They also lack swim bladders.

Molids mostly swim by using their anal and dorsal fins; the pectoral fins are probably just stabilizers. To steer, they squirt a strong jet of water out of their mouths or gills.[5] They can also make minor adjustments in the orientation of the anal fin or the dorsal fin so as to control the amount of force it produces and the angle at which the force is produced. In this respect, they use their fins much like a bird uses its wings.[6]

Molids are said to be able to produce sound by grinding their pharyngeal teeth, which are long and claw-like. Typical of a member of Tetraodontiformes, their teeth are fused into a beak-like structure, making it impossible for them to close their mouths. Despite this, they feed mainly on soft-bodied animals, such as jellyfish and salps, although they also take small fish or crustaceans.[5]

Behavior

Molids have been filmed interacting with other species. Since molids are susceptible to skin parasites, they make use of cleaner fish. A molid in need of cleaning will locate a patch of floating algae or flotsam that is home to halfmoons. The molid signals a readiness for cleaning by swimming almost vertically with its head near the surface of the water, and waits for the smaller cleaner fish to feed on the parasite worms. Similarly, the molid may break the surface of the water with its dorsal fin and beak to attract the attention of a gull or similar seabird. The seabird will then dig worms and other stubborn parasites out of the molid's skin.[6]

Fossil record

The known fossil history of Molidae extends back to the Eocene, with the genus Eomola containing the species E. bimaxillaria, known from the Upper Eocene of the North Caucasus.[1] The fossil genus Austromola containing one species, A. angerhoferi Gregorova, Schultz, Harzhauser & Kroh, 2009, is known from the Lower Miocene Ebelsberg Formation near Pucking, Austria. This species was a resident of the Paratethys Sea and is estimated to have reached a length around 320 cm (130 in). At least one fossil species of Mola, M. pileata (van Beneden, 1881), is known from the Upper and Middle Miocene of Europe with a possible second species known from the Lower Miocene of North Carolina, United States. The genus Ranzania has five known fossil species: R. grahami Weems, 1985 and R. tenneyorum Weems, 1985, both from the Middle Miocene Calvert Formation of Virginia, USA; R. zappai Carnevale, 2007 from the Middle Miocene of Italy; R. ogaii Uyeno & Sakamoto, 1994 from the Middle Miocene of Japan; and an as yet unnamed species from the Upper Miocene of Algeria.[7]

Species

Only five extant species in three extant genera are described:

Rank Molid species Common name Year Mass (kg) Total length
(m)
Clavus (pseudo-tail) appearance Shape of head and chin Image
1 Mola mola Ocean sunfish 1758 2300 3.33 Scalloped Less bumpy and less protruding
2 Mola alexandrini Southern sunfish 2021 2744 3.0 Rounded Bumps on head and chin
3 Mola tecta Hoodwinker sunfish 2017 1870 2.42 Rounded with medial indentation No lumps and bumps on head and chin
4 Masturus lanceolatus Sharptail mola 1840 2000 3.37 Pointed projection Convex forehead
5 Ranzania laevis Slender sunfish 1776 NA 1.0 Slant and flat Pointed and bump-less

References

  1. ^ a b Tyler, James C.; Bannikov, Alexandre F. (1992). "New genus of primitive ocean sunfish with separate premaxillae from the Eocene of Southwest Russia (Molidae, Tetraodontiformes)". Copeia. 1992 (4). Copeia, Vol. 1992, No. 4: 1014–1023. doi:10.2307/1446631. JSTOR 1446631.
  2. ^ Matsuura, K. (2014): Taxonomy and systematics of tetraodontiform fish: a review focusing primarily on progress in the period from 1980 to 2014. Ichthyological Research, 62 (1): 72–113.
  3. ^ "Massive Huge Sun Fish off of Portugal 15 foot plus". YouTube. 6 October 2015. Retrieved 1 March 2019.
  4. ^ Scharpf, Christopher; Lazara, Kenneth J. (12 June 2023). "Family TETRADONTIFORMES" (PDF). The ETYFish Project. Retrieved 30 October 2023.
  5. ^ a b Matsuura, K. & Tyler, J.C. (1998). Paxton, J.R. & Eschmeyer, W.N. (eds.). Encyclopedia of Fishes. San Diego: Academic Press. p. 231. ISBN 0-12-547665-5.
  6. ^ a b Fothergill, A. (director), Attenborough, D. (narrator) (2001-09-12). Blue Planet, Seas Of Life Episode 3 (Television series). BBC Worldwide, Ltd. ISBN 0-563-38498-0.
  7. ^ Ruzena, G., Schultz, O., Harzhauser, M., Kroh, A. & Ćorić, S. (2009): A Giant Early Miocene Sunfish from the North Alpine Foreland Basin (Austria) and its Implication for Molid Phylogeny. Journal of Vertebrate Paleontology, 29 (2): 359–371.
  8. ^ "World's heaviest bony fish identified and correctly named". Springer.com. Retrieved 1 March 2019.
  9. ^ "Mola alexandrini". Fishesofaustralia.net.au. Retrieved 1 March 2019.
  10. ^ "Redescription of the bump-head sunfish Mola alexandrini (Ranzani 1839), senior synonym of Mola ramsayi (Giglioli 1883), with designation of a neotype for Mola mola (Linnaeus 1758) (Tetraodontiformes: Molidae)". Researchgate.net. Retrieved 1 March 2019.

Read other articles:

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Januari 2023. Wissam al-Hassanوسام الحسنBerkas:Mag-329-49.jpgEx-head of Lebanese ISF's Information Branch Brigadier General Wissam al-Hassan, 2012LahirWissam Adnan al-Hassan(1965-04-11)11 April 1965Btouratige, Distrik Koura, LebanonMeninggal19 Oktober 2012(...

 

Hip-hop duo This article is about the hip hop duo. For their eponymous debut album, see Run the Jewels (album). For the JPEGMafia and Danny Brown song, see Scaring the Hoes. Run the JewelsKiller Mike (left) and El-P in 2014Background informationAlso known asRTJYankee and the BraveOriginUnited StatesGenres East coast hip hop hardcore hip hop political hip hop Years active2013–presentLabels Jewel Runners RBC/BMG Mass Appeal Fool's Gold Big Dada Definitive Jux Seeker Members El-P Killer Mike W...

 

جورج زفايج (بالإنجليزية: George Zweig)‏  معلومات شخصية الميلاد 30 مايو 1937 (العمر 86 سنة)موسكو، جمهورية روسيا السوفيتية الاتحادية الاشتراكية مواطنة الولايات المتحدة الجنسية أمريكي عضو في الأكاديمية الوطنية للعلوم،  والأكاديمية الأمريكية للفنون والعلوم  الحياة العملية ال...

العلاقات البولندية الليبيرية بولندا ليبيريا   بولندا   ليبيريا تعديل مصدري - تعديل   العلاقات البولندية الليبيرية هي العلاقات الثنائية التي تجمع بين بولندا وليبيريا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه المقا...

 

Takuya OnishiLahir22 Desember 1975 (umur 48)Nerima, Tokyo, JepangStatusAktifKebangsaanJepangPekerjaanPilotKarier luar angkasaAntariksawan JAXAWaktu di luar angkasa115 hari 02 jam 22 menitSeleksi2009 JAXA GroupMisiSoyuz MS-01 Takuya Onishi (大西 卓哉code: ja is deprecated , Ōnishi Takuya, lahir 22 Desember 1975) adalah seorang antariksawan Jepang dari JAXA, yang terpilih pada 2009.[1] Kehidupan awal Onishi lahir di Nerima, Tokyo, Jepang. Ia lulus dari SMA Seiko Gakuin di Yok...

 

CBS affiliate in Cedar Rapids, Iowa WMT-TV redirects here. Not to be confused with WMTV. KGANCedar Rapids–Waterloo–Iowa City–Dubuque, IowaUnited StatesCityCedar Rapids, IowaChannelsDigital: 29 (UHF)Virtual: 2BrandingCBS 2; Iowa's News NowFox 28 (on DT2)ProgrammingAffiliations2.1: CBS2.2: Fox2.3: QuestOwnershipOwnerSinclair Broadcast Group(KGAN Licensee, LLC)Sister stationsKFXAHistoryFirst air dateSeptember 30, 1953 (70 years ago) (1953-09-30)Former call signsWMT-TV (1953�...

Pulau Pateloran BaratPulau Pulau Pateloran Barat merupakan pulau yang berada pada gugusan Kepulauan Seribu yang secara administratif termasuk dalam wilayah Kabupaten Administratif Kepulauan Seribu provinsi DKI Jakarta bersamaan dengan Pulau Pateloran Timur yang berpasir kasar serta bercampur pecahan karang yang menjadi tempat favorit bagi penyu sisik bertelur, Pulau Penyaliran Barat dan Pulau Penyaliran Timur dijadikan daerah konservasi pengembangan hutan bakau Lihat pula Kabupaten Administra...

 

American film award Black Reel AwardsAwarded forExcellence in African-American FilmsCountryUnited StatesPresented byFoundation for the Advancement of African-Americans in FilmFirst awardedFebruary 16, 2000; 24 years ago (2000-02-16)Last awarded2022Websiteblackreelawards.com24th Annual Black Reel Awards → The Black Reel Awards, or BRAs, is an annual American awards ceremony hosted by the Foundation for the Augmentation of African Americans in film (FAAAF) to recogn...

 

Sporting event delegationSpain at the2004 Summer OlympicsIOC codeESPNOCSpanish Olympic CommitteeWebsitewww.coe.es (in Spanish)in AthensCompetitors317 in 26 sportsFlag bearers Isabel Fernández[1] (opening) David Cal (closing)MedalsRanked 20th Gold 3 Silver 11 Bronze 6 Total 20 Summer Olympics appearances (overview)19001904–19121920192419281932193619481952195619601964196819721976198019841988199219962000200420082012201620202024 Spain competed at the 2004 Summer Olympics in A...

This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: Loma Linda, California – news · newspapers · books · scholar · JSTOR (August 2022) (Learn how and when to remove this message)City in California, United States Loma Linda redirects here. For other uses, see Loma Linda (disambiguation). City in California, United StatesLoma Linda, CaliforniaCityA view of Lo...

 

Motorway in Greece 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: Motorway 1 Greece – news · newspapers · books · scholar · JSTOR (January 2017) (Learn how and when to remove this message) A1 motorwayΑυτοκινητόδρομος 1Route informationPart of E75 Length550 km (340 mi)Majo...

 

Яранская епархия Успенский собор в Яранске Страна  Россия Церковь Русская православная церковь Митрополия Вятская Дата основания 4 октября 2012 года Управление Главный город Яранск Кафедральный собор Успенский Иерарх Епископ Яранский и Лузский Паисий (Кузнецов) (с 4 ок...

For other uses, see Rodrigues (disambiguation). 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: Rodrigues – news · newspapers · books · scholar · JSTOR (February 2017) (Learn how and when to remove this message) Autonomous outer island in MauritiusRodrigues Rodrig (Morisyen)Autonomous outer island FlagC...

 

Governorate of Jordan Place in JordanAqaba Governorate محافظة العقبةThe city port of AqabaLocation of Aqaba Governorate in JordanCountryJordanCapitalAqabaGovernment • GovernorFawaz IrshaidatArea • Total6,905 km2 (2,666 sq mi)Population (2012) • Total139,200 • Density20/km2 (52/sq mi)Time zoneGMT +2 • Summer (DST)+3Area code+(962)3Urban86%Rural14%HDI (2021)0.721[1]high · 3rd of 12 Aqaba (A...

 

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (May 2020) (Learn how and when to remove this message) The Truth-Teller's Tale First editionAuthorSharon ShinnCover artistMatt MahurinCountryUnited StatesLanguageEnglishSeriesSafe-Keepers SeriesGenreFantasyPublisherViking JuvenilePublication date2005Media typePrint (Ha...

2010 single by Train If It's LoveSingle by Trainfrom the album Save Me, San Francisco ReleasedJune 22, 2010GenrePop rockLength3:59LabelColumbiaSongwriter(s)Pat MonahanGregg WattenbergProducer(s)EspionageMartin TerefeGregg WattenbergTrain singles chronology Hey, Soul Sister (2009) If It's Love (2010) Marry Me (2010) Music videoIf it's Love on YouTube If It's Love is the second single from Train's fifth studio album, Save Me, San Francisco. It debuted at No. 31 on Billboard's Hot Adult Top ...

 

This article is about the car sold from 1975 to 1980 in North America. For other uses, see Monza (disambiguation). Motor vehicle Chevrolet Monza1978–1980 Chevrolet Monza CoupéOverviewManufacturerChevrolet (General Motors)Production1974–1980Model years1975–1980AssemblyLordstown, Ohio, U.S. (Lordstown Assembly)South Gate, California, U.S. (South Gate Assembly)Sainte-Thérèse, Quebec, Canada (Sainte-Thérèse Assembly)Body and chassisClassSubcompactBody style2-door 2+2 hatchbac...

 

2015 EAFF Women's East Asian Cup2015年东亚杯女子足球赛Tournament detailsHost country ChinaDates1–8 AugustTeams4 (from 1 sub-confederation)Final positionsChampions North Korea (2nd title)Runners-up South KoreaThird place JapanFourth place ChinaTournament statisticsMatches played6Goals scored19 (3.17 per match)Top scorer(s) Ra Un-sim (3 goals)Best player(s) Wi Jong-sim← 2013 2017 → International football competition The 2015 EAFF Wo...

This is a list of rivers of Argentina. Longest Rivers Name Length (km) Discharge ( m³/s) Paraná River 4880 16,806 Uruguay River 1,110 5,026 Negro River 635 865 Bermejo River 1,000 339 Pilcomayo River 850 152 Colorado River 860 134 Salado River 700 88 San Juan River 500 56 Mendoza River 400 50 Chubut River 810 48 Salado del Norte River 2,000 15 Desaguadero River 1,200 14 Deseado River 615 5 By drainage basin A map of Argentina's river drainage basins. This list is arranged by drainage basin...

 

Anatomi pria. Anatomi atau susunan tubuh manusia adalah sebuah bidang khusus dalam anatomi yang mempelajari struktur tubuh manusia, sedangkan jaringan dipelajari di histologi dan sel di sitologi. Gambar anatomi manusia tubuh manusia, seperti tubuh hewan, terdiri atas sistem, yang terdiri atas organ-organ, yang terdiri atas jaringan-jaringan, yang terdiri atas sel-sel. Lihat sejarah anatomi untuk sejarah anatomi, termasuk anatomi manusia. Sistem tubuh manusia Sistem kardiovaskular: memompa dar...