Delphinonaias

Delphinonaias is a genus of freshwater mussels, aquatic bivalve mollusks in the subfamily Ambleminae of the family Unionidae.

Distribution
Species in this freshwater genus are found in Guatemala.

Species
Species within the genus Cyrtonaias include:
 * Delphinonaias largillierti (Philippi, 1847)
 * Delphinonaias scutulata (Morelet, 1849)


 * Species brought into synonymy:
 * Delphinonaias delphinula (Morelet, 1849) : synonym of Delphinonaias largillierti (Philippi, 1847) (a junior synonym)