Template:Van den Tooren, 2002a
- van den Tooren, D. 2002a. Pseudoscorpions (Pseudoscorpiones: Olpiidae) of the genus Apolpium from Venezuela, and the genera Pachyolpium, Leptolpium gen. nov. and Serianus from Curaçao, Aruba and Bonaire. Zoologische Mededelingen 76(15): 141–192. Full article (PDF).