Oryzias

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Oryzias is a genus of ricefishes native to fresh and brackish water in east and south Asia.[1] 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.[1] They are small, up to Script error: No such module "convert". long, and most are relatively plain in colour.[2]

The genus name Oryzias is a reference to the scientific name for rice, Oryza.[1]

They have an unusual reproductive behavior where the female facultatively (optionally) carries the eggs in a cluster at the pelvic or anal fins for a period after they have been fertilized.[1][3]

Species

File:Oryzias mekongensis male.png
Oryzias mekongensis
File:Oryzias nigrimas by OpenCage.jpg
Oryzias nigrimas
File:Xenopoecilus sarasinorum (Wroclaw zoo)-1.JPG
Oryzias sarasinorum
File:Daisy's Ricefish.JPG
Oryzias woworae

These are the currently recognized species in this genus:[2]

References

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