| Scientific Name | Author | English Name |
|---|---|---|
| Lyonsiella abyssicola | (Sars, 1872) | |
| Lyonsiella alaskana | Dall, 1895 | |
| Lyonsiella aotearoa | Dell, 1995 | |
| Lyonsiella compressa | (Locard, 1898) | |
| Lyonsiella cordata | Verrill & Bush, 1898 | |
| Lyonsiella formosa | (Jeffreys, 1882) | |
| Lyonsiella fragilis | Allen & Turner, 1974 | |
| Lyonsiella frielei | Allen & Turner, 1974 | |
| Lyonsiella gemma | Verrill, 1880 | |
| Lyonsiella granulifera | Verrill, 1885 | |
| Lyonsiella pacifica | Dall, 1908 | |
| Lyonsiella parva | Okutani, 1962 | |
| Lyonsiella perplexa | Allen & Turner, 1974 | |
| Lyonsiella quaylei | Bernard, 1969 | |
| Lyonsiella smidti | (Friele, 1886) | |
| Lyonsiella subquadrata | (Jeffreys, 1881) | |
| Policordia alaskana | (Dall, 1895) | |
| Policordia angelika | (Linse, 2002) | |
| Policordia densicostata | (Locard, 1898) | |
| Policordia diomedea | Dall, Bartsch & Rehder, 1938 | |
| Policordia gemma | (Verrill, 1880) | Sculptureless verticord |
| Policordia grandis | (Smith, 1885) | |
| Policordia insculpta | (Jeffreys, 1881) | |
| Policordia jeffreysi | (Friele, 1879) | |
| Policordia papyracea | (Smith, 1885) | |
| Policordia pilula | (Prashad, 1932) | |
| Policordia radiata | (Dall, 1889) | |
| Policordia uschakovi | (Gorbunov, 1946) |