- Leptoclinus maculatus (Fries, 1838)
- Lumpenella longirostris (Evermann & Goldsborough, 1907)
- Lumpenus lampetraeformis (Walbaum, 1792) accepted as Lumpenus lampretaeformis (Walbaum, 1792)
- Lumpenus lampretaeformis (Walbaum, 1792)
- Lumpenus longirostris Evermann & Goldsborough, 1907 accepted as Lumpenella longirostris (Evermann & Goldsborough, 1907)
- Lumpenus lumpretaeformis (Walbaum, 1792) accepted as Lumpenus lampretaeformis (Walbaum, 1792)
- Lumpenus maculatus (Fries, 1838) accepted as Leptoclinus maculatus (Fries, 1838)