A number of individuals hovered above and around the oral disc and tentacles of Haloclavidae sp. The mysids sometimes perched on the tentacles of the sea anemone. The new species live in ectocommensal association with sea anemones of this family.
Shimomura, M. (2016). Mysidella hoshinoi, a new species from Izu-Oshima Island, Japan (Crustacea, Mysidae, Mysidellinae). ZooKeys. 620: 21-32.