GENUS Potamethus Chamberlin, 1919

Potamis Ehlers, 1887: 278 .

Potamethus Chamberlin, 1919: 469 .— Knight-Jones, 1983: 269.— Fitzhugh, 1989: 71.

Potamethus spathiferus (Ehlers, 1887)

Potamis spathiferus Ehlers, 1887: 278 –283, Pl. 54, Figs 7–11, Pl. 55, Figs 1–4. Potamethus spathiferus .— Knight-Jones, 1983: 269, 271. Type locality: Florida, off Sambos, 453.75 m. Type material: MCZ (HT).

Records: No additional records.