This may be the Cratena affinis in Gosliner et al (2018) although the original description by Baba (1949) does not mention the scattered orange spots on the body. The specimens, photographed immediately below, came off a hydroid sample brought up from the steep seaward slope at Kwajalein; the same colony had three specimens of Tenellia sp. e639 as well. The two specimens were about 5 and 6mm long (not including the tentacles).
Created 13 October 2011
Updated 2 December 2021