The Sharp-jawed buntingi is known to live in a freshwater environment. It is the native to the areas of Indonesia, Asia, Lake Poso, and central Sulawesi. This species is known to live within a benthopelagic range. They are also native to a tropical environment. The Sharp-jawed buntingi is considered to be a non-migratory species. The maximum recorded length of this species as an unsexed male is about 6.5 centimeters or about 2.55 inches. The common length of this species is about 5 centimeters or about 1.96 inches. The Sharp-jawed buntingi is a non-annual breeder. It is considered to be difficult to have in an aquarium. It is used for human commercial use in aquariums.  This species serves as no threat to humans and they are harmless.
The common names of the Oryzias orthognathus in different languages is as follows:
- Buntingi : English
- Pointed head medaka : English
- Pointed head ricefish : English
- Sharp-jawed Buntingi : English
- Sharpjawed buntingi : English
- Spitzkopf-Reiskärpfling : German (Deutsch)
- Suippokuonomedaka : Finnish (suomen kieli)
- 直頜青鮰 : Mandarin Chinese
- 直颌青鮰 : Mandarin Chinese
The taxonomic classification of the Oryzias orthognathus is as follows:
- Kingdom : Animalia
- Phylum : Chordata
- Class : Actinopterygii
- Order : Beloniformes
- Family : Adrianichthyidae
- "Oryzias orthognathus". International Union for Conservation of Nature and Natural Resources. Retrieved 31 May 2013.
- "Oryzias orthognathus Kottelat, 1990 Sharpjawed buntingi". Fish Base. Retrieved 31 May 2013.
- "Oryzias orthognathus — Overview Sharp-jawed Buntingi". Encyclopedia of Life. Retrieved 31 May 2013.
- "Sharpjawed buntingi (Oryzias orthognathus) fish profile". Guppies.ZA. Retrieved 31 May 2013.
- "Sharpjawed buntingi". The Website of Everything. Retrieved 31 May 2013.
|This order beloniformes related article is a stub. You can help Wikipedia by expanding it.|