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| English | German |
| crab louse | Schamlaus (Phthirus pubis, Pthirus pubis) |
| crab louse | Filzlaus (Phthirus pubis, Pthirus pubis) |
| Crab nebula | Krebs-Nebel |
| crab's-eye vine | Schoensamiger Suessstrauch (Abrus precatorius L.) |
| crab's-eye vine | Paternostererbse (Abrus precatorius L.) |
| crab's-eye vine | indisches Suessholz (Abrus precatorius L.) |
| swimming crab | Schwimmkrabbe (Macropipus holsatus, Portunus holsatus) |