Invalid names: Aodon dalei Lesson 1828 [synonym], Delphinus micropterus Cuvier 1829 [synonym], Delphinus sowerbensis de Blainville 1817 [synonym], Heterodon dalei Lesson 1827 [synonym], Mesoplodon sowerbiensis Blainville 1817 [synonym], Mesoplodon sowerbyi Desmarest 1822 [synonym]