- Grampus griseus, Risso's Dolphin;Grampidelphis exilis Iredale and Troughton, 1933;Delphinus griseus Cuvier, 1812;Rissos Dolphin;Grampus;Delphinus griseus;Rissos dolphin
- Hapalemur griseus, Bamboo lemur;Lemur griseus
- Lethocerus griseus, Belostoma grisea;Belostoma haldemanum Leidy, 1847;Belostoma harpax Stl, 1854;Benacus haldemanus;Benacus griseus
- Paepalanthus oyapockensis, Paepalanthus leucocyaneus;Paepalanthus tafelbergensis;Paepalanthus brunneus;Paepalanthus griseus
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