The Collaborative International Dictionary Related phrases: Acipenser rubicundus Acipenser rubicundus Pomancentrus rubicundus Semnopithecus rubicundus Wikipedia Rubicundus Rubicundus is a genus of hagfishes. R. eos, R. lakeside and R. rubicundus are known from single specimens caught in the Tasman Sea, Galápagos and Taiwan.