The rhinofish (Barbus mariae) is a ray-finned fish species in the family Cyprinidae. Its taxonomic identity is not entirely clear: it might not be distinct from B. oxyrhynchus, but if it is, the rather indeterminable taxon B. matris might refer to the rhinofish and be its valid scientific name. It is found only in Kenya. Its natural habitat is rivers. Its status is insufficiently known, mainly due to the taxonomic uncertainties.