This would appear to be the Cratena affinis in Gosliner et al (2015). The first two 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 Flabellina sp. e639 as well. The two specimens were about 5 and 6mm long (not including the tentacles). We were not able to get high resolution photos of these animals.
Another individual was found on hydroids at night in a seaward reef cave at a depth of about 15m. This one was larger but appeared to have damaged cephalic tentacles.
At least one other individual has been photographed by Jay Lord.
Created 13 October 2011
Updated 1 March 2016
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