It is the only known species of Lucernaria from the Pacific Ocean. All other members of this genus inhabit the Atlantic Ocean. It is the first and currently the only known Stauromedusan described as living near a hydrothermal vent. L. janetae has been found at depths ranging between 2500-2700m. NB. The Stauromedusan population described in this paper can not be definitively identified due to a lack of retrieved specimens, however, Collins and Daly tentatively identify this population as L. janetae. When originally described it was believed to be the second deepest-living member of the genus Lucernaria, the deepest living known Stauromedusan was then Lucernaria bathyphila, recorded at a depth of 2800m.Deep Sea News - "From The Desk of Zelnio: Lucernaria janetae" However a recent study found organisms which could be L. janetae at 3001m. , these organisms are, the deepest living known Stauromedusae. Unlike most Stauromedusae, which are solitary organisms, L. janetae forms large populations and, where it occurs, is the dominant macrofauna.
