Found on the underside of a low intertidal boulder. Scanned from a 35 mm slide.
Image by Ali Hermosillo of one of a pair of specimens I found under low intertidal coral rubble at Punta Mita in Feb 2006. CASIZ 174084. At the time this was only the 2nd record of this species outside the tropical Indo-Pacific (Camacho-Garcia et al. 2005, Field guide to the sea slugs of the tropical Eastern Pacific), and the 1st from Mexico.
Egg size (67 microns) and mode of development (planktotrophic) documented in Goddard & Hermosillo (2008, The Veliger 50:83-96).
Approximately 8 mm long; I found five individuals on the undersides of small boulders.