Wiktionary
river lamprey
n. A common name for European river lamprey, (taxlink Lampetra fluviatilis species noshow=1).
Wikipedia
River lamprey
River lamprey is a common name for several fishes and may refer to:
- European river lamprey, Lampetra fluviatilis, native to Europe
- Western river lamprey, Lampetra ayresii, native to western North America