Zenarchopterus is a genus of viviparous halfbeaks. These fish are found in marine, brackish and fresh water of the Indo-Pacific region. Despite being in the viviparous halfbeak family, Zenarchopterus species are oviparous.Berra, T.M. (2001). Freshwater Fish Distribution. p. 320.
They are commonly known as river garfish.
Species There are currently 19 recognized species in this genus: Zenarchopterus alleni (Collette, 1982) (Allen's river garfish) Zenarchopterus buffonis (Valenciennes, 1847) (Buffon's river garfish) Zenarchopterus caudovittatus (M. C. W. Weber, 1907) (Long-jawed river garfish) Zenarchopterus clarus (Mohr, 1926) Zenarchopterus dispar (Valenciennes, 1847) (Feathered river garfish) Zenarchopterus dunckeri (Mohr, 1926) (Duncker's river garfish) Zenarchopterus dux (Seale, 1910) Zenarchopterus ectuntio (F. Hamilton, 1822) Zenarchopterus gilli (H. M. Smith, 1945) Zenarchopterus kampeni (M. C. W. Weber, 1913) (Sepik River halfbeak) Zenarchopterus novaeguineae (M. C. W. Weber, 1913) (Fly River garfish) Zenarchopterus ornithocephala (Collette, 1985) (Vogelkop river garfish) Zenarchopterus pappenheimi (Mohr, 1926) (Bangkok halfbeak) Zenarchopterus philippinus (W. K. H. Peters, 1868) Zenarchopterus quadrimaculatus (Mohr, 1926) Zenarchopterus rasori (Popta, 1912) (Short river garfish) Zenarchopterus robertsi (Collette, 1982) (Robert's river garfish) Zenarchopterus striga (Blyth, 1858) (Hooghly halfbeak) Zenarchopterus takaoensis (Liao, Thiel, Chang, 2024) (Takao's garfish) Zenarchopterus xiphophorus (Mohr, 1934)
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