Oryzias

Oryzias is a genus of ricefishes native to fresh and brackish water in east and south Asia.[4] Some species are widespread and the Japanese rice fish (O. latipes) is commonly used in science as a model organism, while others have very small ranges and are threatened.[4] They are small, up to 8 cm (3.1 in) long, and most are relatively plain in colour.[5]

Oryzias
Japanese rice fish (O. latipes)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Beloniformes
Family: Adrianichthyidae
Subfamily: Oryziinae
Myers,1938[1]
Genus: Oryzias
D. S. Jordan & Snyder, 1906
Type species
Poecila latipes
Synonyms[3]
  • Horaichthys Kulkarni, 1940
  • Xenopoecilus Regan, 1911

The genus name Oryzias is a reference to the scientific name for rice, Oryza.[4]

They have an unusual reproductive behavior where the female facultatively carries the eggs in a cluster at the pelvic or anal fins for a period after they have been fertilized.[4][6]

Species
Oryzias mekongensis
Oryzias nigrimas
Oryzias sarasinorum
Oryzias woworae

There are currently 33 recognized species in this genus:[5]

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References
  1. Richard van der Laan; William N. Eschmeyer & Ronald Fricke (2014). "Family-group names of Recent fishes". Zootaxa. 3882 (2): 001–230.
  2. Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "Oryzias". Catalog of Fishes. California Academy of Sciences. Retrieved 26 July 2019.
  3. Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "{{{1}}} genera". Catalog of Fishes. California Academy of Sciences. Retrieved 26 July 2019.
  4. Parenti, L.R. (2008). "A phylogenetic analysis and taxonomic revision of ricefishes, Oryzias and relatives (Beloniformes, Adrianichthyidae)". Zoological Journal of the Linnean Society. 154: 494–610. doi:10.1111/j.1096-3642.2008.00417.x.
  5. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Oryzias in FishBase. February 2017 version.
  6. Herder, F.; Hadiaty, R. K.; Nolte, A. W. (2012). "Pelvic-fin brooding in a new species of riverine ricefish (Atherinomorpha: Beloniformes: Adrianichthyidae) from Tana Toraja, Central Sulawesi, Indonesia". The Raffles Bulletin of Zoology. 60 (2): 467–476.
  7. Parenti, L.R.; Hadiaty, R.K.; Lumbantobing, D.; Herder, F. (2013). "Two New Ricefishes of the Genus Oryzias (Atherinomorpha: Beloniformes: Adrianichthyidae) Augment the Endemic Freshwater Fish Fauna of Southeastern Sulawesi, Indonesia". Copeia. 2013 (3): 403–414. doi:10.1643/ci-12-114.
  8. Herder, F. & Chapuis, S. (2010). "Oryzias hadiatyae, a new species of ricefish (Atherinomorpha: Beloniformes: Adrianichthyidae) endemic to Lake Masapi, Central Sulawesi, Indonesia" (PDF). The Raffles Bulletin of Zoology. 58: 269–280.
  9. Uwa, H. & Magtoon, W. (1986). "Description and karyotype of a new ricefish, Oryzias mekongensis, from Thailand". Copeia. 51: 473–478. doi:10.2307/1445005. JSTOR 1445005.
  10. Parenti, L. R. & B. Soeroto. (2004). "Adrianichthys roseni and Oryzias nebulosus, two new ricefishes (Atherinomorpha: Beloniformes: Adrianichthyidae) from Lake Poso, Sulawesi, Indonesia". Ichthyological Research. 51: 10–19. doi:10.1007/s10228-003-0187-1.
  11. Mokodongan, D.F.; Tanaka, R.; Yamahira, K. (2014). "A New Ricefish of the Genus Oryzias (Beloniformes, Adrianichthyidae) from Lake Tiu, Central Sulawesi, Indonesia". Copeia. 2014 (3): 561–567. doi:10.1643/ci-13-081.
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