Gertsch, W.J. (1977). On two ricinuleids from the Yucatan Peninsula (Arachnida: Ricinulei). Bulletin of the Association for Mexican Cave Studies 6: 133–138.
| Taxon | |
|---|---|
| Pseudocellus pearsei (Chamberlin and Ivie, 1938) (Ricinulei: Ricinoididae) | 133–136, figs 1, 3–7, 12–13, Cryptocellus pearsei |
| Pseudocellus cookei (Gertsch, 1977) (Ricinulei: Ricinoididae) | 137–138, figs 2, 8–11, 14–15, Cryptocellus cookei |