This is the first of some more web-friendly posts of just a single species. More digestible clip lengths for you and smaller chunks of editing for me, allowing me to post more regularly.
This colorful nudibranch is widespread throughout the Pacific and has been accidentally introduced to the Mediterranean through the Suez Canal. It feeds on marine sponges. (Gosliner et al. 2008).
Hypselodoris infucata was first described by Rüppell & Leuckart in 1828.
This individual was filmed in Apra Harbor on Guam. We have previously seen this species only twice on Guam, but they were both very small (~10mm). This is the largest one we've seen at ~25mm; they grow to 50 mm.