''Adrianichthys'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

ricefish The ricefishes are a family (Adrianichthyidae) of small ray-finned fish that are found in fresh and brackish waters from India to Japan and out into the Malay Archipelago, most notably Sulawesi (where the Lake Poso and Lore Lindu species are kn ...

es. The genus is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

Lake Poso Lake Poso ( id, Danau Poso) is a lake in Central Sulawesi, Indonesia, and the third-deepest lake in Indonesia. The town of Pendolo is situated at the southern end of the lake, the town of Tentena is located at the northern end, while a nu ...

in Sulawesi,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

. All four species are considered seriously threatened and two of these, ''A. kruyti'' and ''A. roseni'', have not been recorded for decades, leading to fears that they already are extinct.Parenti, L.R. (2011)
Endemism and Conservation of the Native Freshwater Fish Fauna of Sulawesi, Indonesia
Prosiding Seminar Nasional Ikan IV: 1-10. ''Adrianichthys'' are larger than the ''

Oryzias ''Oryzias'' is a genus of ricefishes native to fresh and brackish water in east and south Asia. 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 ...

'' ricefish, reaching lengths of depending on the exact species involved. The name of this genus is a compound ending in the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

''ichthys'' for "fish" with the first part honouring the

linguist Linguistics is the scientific study of human language. It is called a scientific study because it entails a comprehensive, systematic, objective, and precise analysis of all aspects of language, particularly its nature and structure. Lingui ...

and

missionary A missionary is a member of a Religious denomination, religious group which is sent into an area in order to promote its faith or provide services to people, such as education, literacy, social justice, health care, and economic development.Tho ...

Nicolaus Adriani (1865-1926), who collected specimens around Lake Poso.

Species

There are currently four recognized species in this genus: * '' Adrianichthys kruyti'' M. C. W. Weber, 1913 (Duckbilled buntingi) * '' Adrianichthys oophorus'' ( Kottelat, 1990) (Eggcarrying buntingi) * '' Adrianichthys poptae'' ( M. C. W. Weber & de Beaufort, 1922) (Popta's buntingi) * '' Adrianichthys roseni'' Parenti & Soeroto, 2004

References

Adrianichthyidae Taxa named by Max Carl Wilhelm Weber Freshwater fish of Sulawesi {{Beloniformes-stub