^McLay, Colin (2007-07-09). "New crabs from hydrothermal vents of the Kermadec Ridge submarine volcanoes, New Zealand: Gandalfus gen. nov. (Bythograeidae) and Xenograpsus (Varunidae) (Decapoda: Brachyura)". Zootaxa. 1524 (1). Magnolia Press: 1–22. doi:10.11646/zootaxa.1524.1.1. ISSN1175-5334.