The Collaborative International Dictionary
Lampern
Lampern \Lam"pern\, n. [See Lamprey.] (Zo["o]l.) The river lamprey ( Ammoc[oe]tes fluviatilis syn. Lampetra fluviatilis).
Note: The name is also applied to other river lampreys.
Wiktionary
lampern
n. The European river lamprey, (taxlink Lampetra fluviatilis species noshow=1).