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Acheilognathus
Acheilognathus rhombeus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Subfamily:	Acheilognathinae
Genus:	Acheilognathus Bleeker, 1860
Type species
Capoeta rhombea Temminck & Schlegel, 1846

Acheilognathus is a genus of cyprinid fish native to Asia. The name is derived from the Greek a, meaning "without", the Greek cheilos, meaning "lip", and the Greek gnathos, meaning "jaw".

Morphology

Fish of this genus range in length from 5 to 27 cm. They are similar in appearance to fishes of the genus Puntius.

Species

There are currently 41 recognized species in this genus:

• Acheilognathus asmussii (Dybowski, 1872) (Russian bitterling)
• Acheilognathus barbatulus Günther, 1873
• Acheilognathus barbatus Nichols, 1926
• Acheilognathus brevicaudatus Y. R. Chen & Z. Y. Li, 1987
• Acheilognathus changtingensis Qing Yang, Y. R. Zhu, B. X. Xiong & H. Z. Liu, 2011
• Acheilognathus coreanus Steindachner, 1892
• Acheilognathus cyanostigma D. S. Jordan & Fowler, 1903 (striped bitterling)
• Acheilognathus deignani (H. M. Smith, 1945)
• Acheilognathus elongatoides Kottelat, 2001
• Acheilognathus elongatus (Regan, 1908) (elongate bitterling)
• Acheilognathus fasciodorsalis V. H. Nguyễn, 2001
• Acheilognathus gracilis Nichols, 1926
• †Acheilognathus hondae (D. S. Jordan & Metz, 1913)
• Acheilognathus hypselonotus (Bleeker, 1871)
• Acheilognathus imberbis Günther, 1868
• Acheilognathus imfasciodorsalis V. H. Nguyễn, 2001
• Acheilognathus kyphus (Đ. Y. Mai, 1978)
• Acheilognathus longibarbatus (Đ. Y. Mai, 1978)
• Acheilognathus longipinnis Regan, 1905 (deepbody bitterling)
• Acheilognathus macromandibularis A. Doi, R. Arai & H. Z. Liu, 1999
• Acheilognathus macropterus (Bleeker, 1871)
• Acheilognathus majusculus I. S. Kim & H. Yang, 1998
• Acheilognathus melanogaster Bleeker, 1860 (Japanese bitterling)
• Acheilognathus meridianus (H. W. Wu, 1939)
• Acheilognathus microphysa J. X. Yang, X. L. Chu & Y. R. Chen, 1990
• Acheilognathus nguyenvanhaoi H. D. Nguyễn, Đ. H. Trần & T. T. Tạ, 2013
• Acheilognathus omeiensis (H. J. Shih & T. L. Tchang, 1934)
• Acheilognathus peihoensis Fowler, 1910
• Acheilognathus polylepis (H. W. Wu, 1964)
• Acheilognathus polyspinus (Holčík, 1972)
• Acheilognathus rhombeus (Temminck & Schlegel, 1846)
• Acheilognathus striatus Qing Yang, B. X. Xiong, Q. Y. Tang & H. Z. Liu, 2010
• Acheilognathus tabira D. S. Jordan & W. F. Thompson, 1914
  • Acheilognathus tabira erythropterus R. Arai, Fujikawa & Nagata, 2007
  • Acheilognathus tabira jordani R. Arai, Fujikawa & Nagata, 2007
  • Acheilognathus tabira nakamurae R. Arai, Fujikawa & Nagata, 2007
  • Acheilognathus tabira tabira D. S. Jordan & W. F. Thompson, 1914
  • Acheilognathus tabira tohokuensis R. Arai, Fujikawa & Nagata, 2007
• Acheilognathus taenianalis (Günther, 1873)
• Acheilognathus tonkinensis (Vaillant, 1892)
• Acheilognathus typus Bleeker, 1863
• Acheilognathus yamatsutae T. Mori, 1928

In addition, there are two undescribed species in Korea awaiting further study:

• Acheilognathus sp.
• Acheilognathus sp. HR

References

1. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Acheilognathus". FishBase. February 2013 version.
2. Nguyen Huu Duc; Tran Duc Hau; Ta Thi Thuy (2013). "A new species of genus Acheilognathus, Bleeker, 1895 from the Tien Yen river, Vietnam". Vietnam Journal of Biology. 35 (1): 18–22. doi:10.15625/0866-7160/v35n1.2933.
3. Chae, B.S.; Kim, S.K.; Lee, J.H.; Hwang, U.W. (2014). "Taxonomic status of Acheilognathus sp. (Cyprinidae) found in the Geum River, Korea". Korean Journal of Ichthyology (in Korean). 26 (4): 249–258. Retrieved 5 June 2023.
4. Kim, Y.H.; Yun, B.H.; Sung, M.S.; Bang, I.-C. (2022). "Taxonomic Status of Acheilognathus sp. HR (Cypriniformes: Acheilognathidae) Found in the Dalcheon River, a Tributary of Hangang River, Korea". Korean Journal of Ichthyology (in Korean). 34 (4): 231–243. doi:10.35399/ISK.34.4.2. Retrieved 5 June 2023.

• Acheilognathus
• Taxa named by Pieter Bleeker