| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Amphiporus angulatus (Fabricius, 1774) |
Chevron amphiporus | Eastern Pacific, Northern Atlantic and the Arctic | |
| Amphiporus antifuscus Iwata, 1954 |
Northern Pacific | ||
| Amphiporus bimaculatus Coe, 1901 |
Chevron ribbon worm | Pacific Ocean and the Arctic. | 15 |
| Amphiporus bioculatus McIntosh, 1873 |
Northeast Atlantic | ||
| Amphiporus caecus unspecified |
Canada | ||
| Amphiporus californicus Coe, 1905 |
East Central Pacific | ||
| Amphiporus cervicalis (Stimpson, 1857) |
Northern Pacific | ||
| Amphiporus cruentatus unspecified |
Western Central Atlantic | ||
| Amphiporus depressus (Stimpson, 1857) |
Northwest Pacific | ||
| Amphiporus exilis Coe, 1901 |
Northeast Pacific | ||
| Amphiporus formidabilis Griffin, 1898 |
White ribbon worm | Northeast Pacific | |
| Amphiporus frontalis Verrill, 1892 |
Canada | ||
| Amphiporus griseus unspecified |
Canada | ||
| Amphiporus groenlandicus unspecified |
Northwest Atlantic | ||
| Amphiporus hastatus Mcintosh, 1873 |
Northwest Atlantic | ||
| Amphiporus heterosorus Verrill, 1892 |
Northwest Atlantic | ||
| Amphiporus imparispinosus Griffin, 1898 |
Pink-fronted ribbon worm | Pacific Ocean and the Arctic | |
| Amphiporus lactifloreus (Johnston, 1828) |
Northern hemisphere | ||
| Amphiporus leuciodus Coe, 1901 |
Northeast Pacific | 7.5 | |
| Amphiporus moseleyi Hubrecht, 1887 |
Antarctic Indian Ocean | ||
| Amphiporus musculus Iwata, 1954 |
Northwest Pacific | ||
| Amphiporus nebulosus Coe, 1901 |
Northeast Pacific | ||
| Amphiporus ochraceus unspecified |
Canada | ||
| Amphiporus parvus Yamaoka, 1940 |
Northwest Pacific | ||
| Amphiporus punctatulus Coe, 1905 |
Northern Pacific | ||
| Amphiporus regius Iwata, 1954 |
Northwest Pacific | ||
| Amphiporus rubellus Coe, 1905 |
East Central Pacific | 2.5 | |
| Amphiporus sinuosus (Stimpson, 1857) |
Northwest Pacific |