| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Weltnerium aduncum (Aurivillius, 1892) |
Southwest Atlantic | ||
| Weltnerium bouvieri (Gruvel, 1906) |
Antarctic Pacific and Atlantic Antarctic | ||
| Weltnerium hydrozoaphilum Young, 2000 |
South West Atlantic | ||
| Weltnerium nymphocola (Hoek, 1883) |
Northeast Atlantic and the Arctic | ||
| Weltnerium poculum (Hoek, 1907) |
Western Central Pacific |