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thornback | guitar-fishes
| guitar fish | |
| ichtyol. | Rhinobatus schegelii |
| guitar-fish | |
| ichtyol. | Rhina ancylostoma |
| thornback: 11 phrases in 4 subjects |
| Fish farming pisciculture | 1 |
| Food industry | 1 |
| Ichthyology | 8 |
| Natural resourses and wildlife conservation | 1 |