Opsariichthys

Opsariichthys is a genus of freshwater ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies^[2][1] found in freshwater habitats in Mainland China (including Hainan), Taiwan, Japan, Korea, and Vietnam.^[3]

Opsariichthys
Opsariichthys uncirostris
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Xenocyprididae
Genus:	Opsariichthys Bleeker, 1863[1]
Type species
Leuciscus uncirostris Temminck and Schlegel, 1846[1]

Species

These are the species, some with uncertain status:^[2][4]

• Opsariichthys acutipinnis (Bleeker, 1871)
• Opsariichthys amurensis Berg 1932
• Opsariichthys bidens Günther, 1873
• Opsariichthys chengtui (Sh. Kimura, 1934)
• Opsariichthys dienbienensis V. H. Nguyễn & H. D. Nguyễn, 2000
• Opsariichthys duchuunguyeni Huynh T. Q. & I. S. Chen, 2013^[3]
• Opsariichthys evolans (D. S. Jordan & Evermann, 1902)
• Opsariichthys hainanensis Nichols & C. H. Pope, 1927
• Opsariichthys hieni T. T. Nguyen, 1987
• Opsariichthys iridescens X. Peng, J. J. Zhou & J. Q. Yang, 2024
• Opsariichthys jishuiensis Zha & Xu, 2025
• Opsariichthys kaopingensis I. S. Chen & J. H. Wu, 2009
• Opsariichthys macrolepis (Yang & Hwang, 1964)
• Opsariichthys minutus Nichols, 1926
• Opsariichthys pachycephalus Günther, 1868
• Opsariichthys rubriventris J. B. Chen, Y. T. Li, J. J. Zhou & J. J. Wang 2024
• Opsariichthys songmaensis V. H. Nguyễn & H. D. Nguyễn, 2000
• Opsariichthys uncirostris (Temminck & Schlegel, 1846) — three-lips, hasu (ハス)

The status of Opsariichthys bea and Opsariichthys hieni are uncertain; the former might belong to the genus Parazacco and the latter to Rasbora.^[4][3]