We saw this large nudibranch on a number of occasions, usually at night at Makua and Pupukea, and once during the day at the Halona Point Blowhole on Oahu. These Hawaiian specimens are similar to, but not quite the same as the animals we are calling Platydoris formosa in the Marshall Islands. Several but not all specimens from the Philippines were much closer. This is another species that could probably use a bit more study.
Created 20 April 2009