| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Oecidiobranchus glacialis Malyutina & Kussakin, 1996 |
Polar Sea | ||
| Oecidiobranchus nanseni Just, 1980 |
Arctic | ||
| Oecidiobranchus nowrae Brix, 2006 |
Southwest Pacific | ||
| Oecidiobranchus plebejum (Hansen, 1916) |
Iceland | ||
| Oecidiobranchus polare (Gurjanova, 1946) |
N |