Taxa included

Talarico, G., Hernandez, L.F.G & Michalik, P. (2008). The male genital system of the New World Ricinulei (Arachnida): ultrastructure of spermatozoa and spermiogenesis with special emphasis on its phylogenetic implications. Arthropod Structure and Development 37: 396–409.

Taxon
Pseudocellus pearsei (Chamberlin and Ivie, 1938) (Ricinulei: Ricinoididae) 399–407, figs 1b–d, 2b, 2g, 2h, 3a, 3b, 3d, 3e, 4c, 4d, 5b, 6c, 6e, 7c–f, Pseudocellus pearsei (Chamberlin and Ivie)
Cryptocellus narino Platnick and Paz, 1979 (Ricinulei: Ricinoididae) 399–407, figs 1a, 1f-h, 2a, 2c–g, 3c, 4e, 5a, 5c, 6a, 6b, 6f, 7a, Cryptocellus narino