This looks as though it may be Herviella claror. The black speckled body and color of the rhinophores and gills match the one figured in Gosliner et al (2018), although it might look a little closer to the one the same reference calls Herviella sp. 1. The single animal was found crawling on coral rubble and sponges in the bottom of the channel off Bethlehem.
Created 8 August 2016
Updated 6 December 2018