Widmer, C. L. (2011) “The hydroid and early medusa stages of the deep sea jellyfish Earleria purpurea (Hydrozoa: Mitrocomidae) from the Monterey Bay Submarine Canyon, USA”, Zootaxa. Auckland, New Zealand, 2902(1), pp. 59–68. doi: 10.11646/zootaxa.2902.1.3.