 |
Pilger | muschel
| Muschel | |
| nat.sc. | schelp |
| Muscheln | |
| gen. | mosselen |
| life.sc. | Filibranchia; Lamellibranchia; tweekleppige schelpdieren |
| Pilger: 4 phrases in 2 subjects |
| Fish farming pisciculture | 2 |
| Ichthyology | 2 |