 While analyses of morphology suggest a close relationship between Homarinus and Homarus , molecular analyses using mitochondrial DNA reveal that they are not sister taxa . Both genera lack ornamentation such as spines and <unk> , but are thought to have reached that state independently , through <unk> evolution . The closest living relative of Homarus is <unk> <unk> , while the closest relatives of Homarinus are <unk> and <unk> . 
