Thuesen, E. V. “Crossota Millsae (Cnidaria: Trachymedusae: Rhopalonematidae), a New Species of Viviparous Hydromedusa from the Deep Sea off California and Hawaii”. Zootaxa, vol. 309, no. 1, Sept. 2003, pp. 1–12, doi:10.11646/zootaxa.309.1.1.