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| Subject | English | Russian |
| ichtyol. | blue swimming crab | краб (Neptunus; Lopha pelagicus) |
| swim. | crab swimming | плавать ногами вперёд |
| ichtyol. | swimming crab | краб-плавунец (Ovalipes catharus, Portunus puber, liocarcinus puber) |
| fish.farm. | swimming crab | краб-плавунец (Portunus dimock) |