Tooren, D. van den, 2002. Pseudoscorpions of the genera Pacholpium, Novohorus and Amblyolpium (Pseudoscorpiones: Olpiidae) from St. Eustatius (Statia), St. Martin (Sint Maarten) and Anguilla (Lesser Antilles, Leeward group).― Zoologische Mededelingen Leiden 76: 451-472, figs 1-9.