| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Antinoe aequiseta | 64556 | Kinberg, 1855 | | ITIS | invalid | junior synonym of Harmothoe aequiseta | Species |
| Antinoe waahli | 64574 | Kinberg, 1855 | | ITIS | invalid | junior synonym of Harmothoe waahli | Species |
| Aphrodita imbricata | 64514 | Linnaeus, 1767 | | ITIS | invalid | junior synonym of Harmothoe imbricata | Species |
| Evarne johnstoni | 64545 | McIntosh, 1876 | | ITIS | invalid | junior synonym of Harmothoe johnstoni | Species |
| Evarnella trimaculata | 64525 | Treadwell, 1924 | | ITIS | invalid | junior synonym of Harmothoe trimaculata | Species |
| Harmothoe acanellae | 64522 | Verrill | | ITIS | valid | | Species |
| Harmothoe aculeata | 64523 | Andrews, 1891 | | ITIS | valid | | Species |
| Harmothoe aequiseta | 64555 | (Kinberg, 1855) | | ITIS | valid | | Species |
| Harmothoe agulhana | 64560 | | | ITIS | valid | | Species |
| Harmothoe antilopis | 64561 | McIntosh, 1876 | | ITIS | valid | | Species |
| Harmothoe areolata | 64533 | (Grube, 1860) | | ITIS | valid | | Species |
| Harmothoe aspera | 64506 | (Hansen, 1878) | | ITIS | valid | | Species |
| Harmothoe benthaliana | 64580 | McIntosh, 1885 | | ITIS | valid | | Species |
| Harmothoe beringiana | 64508 | Annenkova, 1952 | | ITIS | valid | | Species |
| Harmothoe corralophila | 64562 | | | ITIS | valid | | Species |
| Harmothoe crassicirrata | 64553 | Johnson, 1897 | | ITIS | valid | | Species |
| Harmothoe crucis | 64539 | (Grube, 1856) | | ITIS | valid | | Species |
| Harmothoe dearborni | 64547 | Pettibone, 1955 | | ITIS | valid | | Species |
| Harmothoe dictyophora | 64563 | (Grube, 1878) | | ITIS | valid | | Species |
| Harmothoe elisabethae | 573734 | (McIntosh, 1900) | | ITIS | valid | | Species |
| Harmothoe extenuata | 64509 | | | ITIS | valid | | Species |
| Harmothoe floccosa | 64511 | | | ITIS | valid | | Species |
| Harmothoe forcipata | 64554 | | | ITIS | valid | | Species |
| Harmothoe fragilis | 64536 | | | ITIS | valid | | Species |
| Harmothoe fraserthomsoni | 64526 | Mcintosh, 1897 | | ITIS | valid | | Species |
| Harmothoe fusca | 64581 | (Mcintosh, 1885) | | ITIS | valid | | Species |
| Harmothoe gilchristi | 64543 | | | ITIS | valid | | Species |
| Harmothoe goreensis | 64566 | Augener, 1918 | | ITIS | valid | | Species |
| Harmothoe haliaeti | 64535 | McIntosh, 1876 | | ITIS | valid | | Species |
| Harmothoe hirsuta | 64512 | Johnson, 1897 | | ITIS | valid | | Species |
| Harmothoe imbricata | 64513 | (Linnaeus, 1769) | | ITIS | valid | | Species |
| Harmothoe impar | 64515 | | | ITIS | valid | | Species |
| Harmothoe johnstoni | 64544 | (Mcintosh, 1876) | | ITIS | valid | | Species |
| Harmothoe lagiscoides | 64567 | Willey, 1902 | | ITIS | valid | | Species |
| Harmothoe lamellifora | 64516 | | | ITIS | valid | | Species |
| Harmothoe lanceocirrata | 64540 | Treadwell, 1928 | | ITIS | invalid | junior synonym of Harmothoe crucis | Species |
| Harmothoe ljungmani | 64527 | (Malmgren, 1867) | | ITIS | valid | | Species |
| Harmothoe longisetis | 64529 | (Grube, 1863) | | ITIS | valid | | Species |
| Harmothoe macginitiei | 64550 | Pettibone, 1955 | | ITIS | valid | | Species |
| Harmothoe maxillospinosa | 64546 | Saint-Joseph, 1888 | | ITIS | valid | | Species |
| Harmothoe mexicana | 64579 | Chamberlin, 1919 | | ITIS | valid | | Species |
| Harmothoe multisetosa | 64517 | | | ITIS | valid | | Species |
| Harmothoe nodosa | 64548 | | | ITIS | valid | | Species |
| Harmothoe oerstedi | 64549 | | | ITIS | valid | | Species |
| Harmothoe polytrichiodes | 64541 | Augener, 1922 | | ITIS | invalid | junior synonym of Harmothoe crucis | Species |
| Harmothoe priops | 64531 | | | ITIS | valid | | Species |
| Harmothoe profunda | 64571 | | | ITIS | valid | | Species |
| Harmothoe rarispina | 64510 | | | ITIS | invalid | junior synonym of Harmothoe extenuata | Species |
| Harmothoe roberti | 64577 | Augener, 1922 | | ITIS | invalid | junior synonym of Harmothoe variegata | Species |
| Harmothoe saldanha | 64572 | Day, 1953 | | ITIS | valid | | Species |
| Harmothoe scriptoria | 64532 | Moore, 1910 | | ITIS | valid | | Species |
| Harmothoe spinifera | 64537 | (Ehlers, 1864) | | ITIS | valid | | Species |
| Harmothoe spinosa | 64575 | Kinberg, 1855 | | ITIS | valid | | Species |
| Harmothoe spinosa lagiscoides | 64568 | Willey, 1902 | | ITIS | invalid | junior synonym of Harmothoe lagiscoides | Subspecies |
| Harmothoe spinulosa | 64551 | | | ITIS | valid | | Species |
| Harmothoe trilobocephala | 64585 | (Morgera, 1918) | | ITIS | valid | | Species |
| Harmothoe trimaculata | 64524 | (Treadwell, 1924) | | ITIS | valid | | Species |
| Harmothoe unicolor | 64578 | Baird, 1865 | | ITIS | valid | | Species |
| Harmothoe variegata | 64576 | Treadwell, 1917 | | ITIS | valid | | Species |
| Harmothoe villosa | 64552 | Treadwell, 1926 | | ITIS | valid | | Species |
| Harmothoe violacea | 64583 | (Storm, 1879) | | ITIS | valid | | Species |
| Harmothoe waahli | 64573 | (Kinberg, 1855) | | ITIS | valid | | Species |
| Laenilla fusca | 64582 | McIntosh, 1885 | | ITIS | invalid | junior synonym of Harmothoe fusca | Species |
| Laenilla violacea | 64584 | Storm, 1879 | | ITIS | invalid | junior synonym of Harmothoe violacea | Species |
| Parmenis capensis | 64557 | Kinberg, 1855 | | ITIS | invalid | junior synonym of Harmothoe aequiseta | Species |
| Parmenis ljungmani | 64528 | Malmgren, 1867 | | ITIS | invalid | junior synonym of Harmothoe ljungmani | Species |
| Parmenis reticulata | 64564 | Mcintosh, 1924 | | ITIS | invalid | junior synonym of Harmothoe dictyophora | Species |
| Polynoe areolata | 64534 | Grube, 1860 | | ITIS | invalid | junior synonym of Harmothoe areolata | Species |
| Polynoe aspera | 64507 | Hansen, 1878 | | ITIS | invalid | junior synonym of Harmothoe aspera | Species |
| Polynoe crucis | 64542 | Grube, 1856 | | ITIS | invalid | junior synonym of Harmothoe crucis | Species |
| Polynoe dictyophora | 64565 | Grube, 1878 | | ITIS | invalid | junior synonym of Harmothoe dictyophora | Species |
| Polynoe longisetis | 64530 | Grube, 1863 | | ITIS | invalid | junior synonym of Harmothoe longisetis | Species |
| Polynoe spinifera | 64538 | Ehlers, 1864 | | ITIS | invalid | junior synonym of Harmothoe spinifera | Species |
| Tricosmochaeta trilobocephala | 64586 | Morgera, 1918 | | ITIS | invalid | junior synonym of Harmothoe trilobocephala | Species |
