Included taxa
Churchill, T. B. & Raven, R. J. (1992). Systematics of the intertidal trapdoor spider genus Idioctis (Mygalomorphae: Barychelidae) in the western Pacific with a new genus from the northeast. Memoirs of the Queensland Museum 32: 9-30. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Idioctis ferrophila | Barychelidae | 17, f. 11a-d, 12a-g (Df) | Idioctis ferrophila |
| Idioctis helva | Barychelidae | 11, f. 3a-d, 5a-j, 6a-g (f, Dm) | Idioctis helva |
| Idioctis marovo | Barychelidae | 21, f. 17a-f, 18a-f (Df) | Idioctis marovo |
| Idioctis talofa | Barychelidae | 19, f. 14a-c, 15a-h (Df) | Idioctis talofa |
| Idioctis yerlata | Barychelidae | 14, f. 1, 8a-f, 9a-g (Df) | Idioctis yerlata |
| Nihoa hawaiiensis | Barychelidae | 28 (Tmf from Idioctis) | Nihoa hawaiiensis |
| Nihoa mahina | Barychelidae | 24, f. 20a-f, 21a-e, 22a-g (Dmf) | Nihoa mahina |
Genera
| Genus | Family | Page |
|---|---|---|
| Nihoa Raven & Churchill, 1992 | Barychelidae | 23 |