| Scientific Name | Author | English Name |
|---|---|---|
| Amicula amiculata | (Pallas, 1787) | |
| Amicula pallasii | (Middendorff, 1847) | |
| Amicula vestita | (Broderip & Sowerby I, 1829) | |
| Katharina tunicata | (Wood, 1815) | Black katy |
| Mopalia acuta | (Carpenter, 1855) | |
| Mopalia ciliata | (Sowerby II, 1840) | Hairy chiton |
| Mopalia cirrata | Berry, 1919 | |
| Mopalia egretta | Berry, 1919 | Egret-plumped mopalia |
| Mopalia ferreirai | Clark, 1991 | |
| Mopalia hindsii | (Reeve, 1847) | Hind's Mopalia |
| Mopalia imporcata | Carpenter, 1864 | |
| Mopalia kennerleyi | Carpenter, 1864 | Northern hairy chiton |
| Mopalia laevior | Pilsbry, 1918 | |
| Mopalia lignosa | (Gould, 1846) | Woody chiton |
| Mopalia lowei | Pilsbry, 1918 | |
| Mopalia muscosa | (Gould, 1846) | Mossy chiton |
| Mopalia phorminx | Berry, 1919 | |
| Mopalia porifera | Pilsbry, 1893 | |
| Mopalia recurvans | Barnawell, 1960 | |
| Mopalia sinuata | Carpenter, 1864 | Dwarf hairy mopalia |
| Mopalia spectabilis | Cowan & Cowan, 1977 | Red-flecked mopalia |
| Mopalia swanii | Carpenter, 1864 | Swan's mopalia |
| Mopalia vespertina | (Gould, 1852) | Smooth mopalia |
| Nuttallochiton mirandus | (Smith & Thiele, 1906) | |
| Placiphorella atlantica | (Verrill & Smith, 1882) | |
| Placiphorella borealis | Pilsbry, 1893 | Boreal veiled chiton |
| Placiphorella mirabilis | Clark, 1994 | |
| Placiphorella rufa | Berry, 1917 | Red veiled chiton |
| Placiphorella stimpsoni | (Gould, 1859) | Veiled chiton |
| Placiphorella velata | Dall, 1879 | Veiled Pacific chiton |
| Plaxiphora albida | (Blainville, 1825) | |
| Plaxiphora aurata | (Spalowsky, 1795) | Camouflaged spiny sea cradle |
| Plaxiphora australis | (Suter, 1907) | |
| Plaxiphora biramosa | (Quoy & Gaimard, 1835) | |
| Plaxiphora boydeni | Murdoch, 1982 | |
| Plaxiphora caelata | (Reeve, 1847) | |
| Plaxiphora egregia | (Adams, 1867) | |
| Plaxiphora fernandezi | Thiele, 1909 | |
| Plaxiphora gwenae | Ferreira, 1987 | |
| Plaxiphora kamehamehae | Ferreira & Bertsch, 1979 | |
| Plaxiphora mercatoris | Leloup, 1936 | |
| Plaxiphora murdochi | Suter, 1905 | |
| Plaxiphora obtecta | Carpenter, 1893 |