Chamberlin, R.V. & Ivie, W. (1938). Arachnida of the orders Pedipalpida, Scorpionida and Ricinulida. Carnegie Institute Washington, Publications 491: 101–107.
| Taxon | |
|---|---|
| Pseudocellus pearsei (Chamberlin and Ivie, 1938) (Ricinulei: Ricinoididae) | 104–106, figs 8–9, 14–17, Cryptocellus pearsei |
| Pseudocellus relictus (Chamberlin and Ivie, 1938) (Ricinulei: Ricinoididae) | 106, figs 10–13, Cryptocellus relictus |