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pikkunahkiainen (Lampetra ayresi, Lampetra fluviatilis, Lampetra planeri, Lethenteron japonicum, lampetra japonica, Petromyzon marinus, Petromyzontidae) | |||
nahkiainen (Lampetra ayresi, Lampetra fluviatilis, Lampetra planeri, Lethenteron japonicum, lampetra japonica, Petromyzon marinus, Petromyzontidae) | |||
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nahkiainen (Lampetra fluviatilis, Petromyzon fluviatilis) |