| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Spio aequalis Ehlers, 1904 |
Western Central Pacific | ||
| Spio armata unspecified |
Northeast Atlantic | ||
| Spio butleri unspecified |
Northeast Pacific | ||
| Spio cirrifera unspecified |
Northeast Pacific | ||
| Spio decoratus Bobretzky, 1870 |
Eastern Atlantic, Mediterranean and Black Sea | ||
| Spio filicornis (Müller, 1776) |
Arctic, Northeast Atlantic and Indo-Pacific | 3 | |
| Spio goniocephala Thulin, 1957 |
Northeast Atlantic | ||
| Spio hirsuta Treadwell, 1928 |
Eastern Pacific | ||
| Spio martinensis Mesnil, 1896 |
Eastern Atlantic, Arctic, Mediterranean, Black Sea and Northwest Pacific | ||
| Spio multioculata unspecified |
Western Central Pacific and the Mediterranean Sea | ||
| Spio pettibonae Foster, 1971 |
Western Central Atlantic | ||
| Spio pettiboneae Foster, 1971 |
Western Central Atlantic | ||
| Spio pigmentata Lee, Meißner, Yoon & Min, 2021 |
Northwest Pacific | ||
| Spio theeli (Söderström, 1920) |
Arctic and Northwest Atlantic |