Oryzias curvinotus

Oryzias curvinotus, or the Hainan medaka, is a species of ricefish which is found in Quang Ninh Province in northern Vietnam and Hainan, Guangdong and Hong Kong in southern China.^[1] It is found in both fresh and brackish water.^[3] This species was described as Aplocheilus curvinotus in 1927 by J.T. Nichols and C.H. Pope with the type locality given as Nodoa, Hainan Island, China.^[4]

Oryzias curvinotus
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Beloniformes
Family:	Adrianichthyidae
Genus:	Oryzias
Species:	O. curvinotus
Binomial name
Oryzias curvinotus (Nichols & C. H. Pope, 1927)
Synonyms[2]
Aplocheilus curvinotus Nichols & Pope, 1927

Oryzias curvinotus can grow to 4 cm (1.6 in) total length.^[2]