 |
| |||
| brown bullhead (Ameiurus nebulosus, Ictalurus nebulosus) | |||
| black bullhead (Ictalurus melas); channel catfish (Ictalurus punctatus) | |||
| |||
| American catfish; brown bullhead | |||
| |||
| catfishes (Ictaluridae) | |||
| |||
| bagrid catfish | |||
| |||
| bullhead | |||
| pesce gatto: 17 phrases in 3 subjects |
| Fish farming pisciculture | 6 |
| Ichthyology | 8 |
| Natural resourses and wildlife conservation | 3 |