Phallostethus
Phallostethus (< φαλλός 'penis' + στῆθος 'pectus') est genus piscium familiae Phallostethidarum, in habitationibus aquae dulcis et amarae in Asia Meridiorientali endemicorum.

Species 
Tres species agnotae in genus digeruntur:
 Phallostethus cuulong Shibukawa, Đ. Đ. Trần & X. L. Trần, 2012
 Phallostethus dunckeri Regan, 1913
 Phallostethus lehi Parenti, 1996

Notae 

Atheriniformes
Taxa Regan
Taxa 1913