We found these at several sites near Tulamben. Like other Favorinus species, these prey on the eggs on other opisthobranch mollusks.
Below a Favorinus japonicus and F. mirabilis are both near a couple of small eolid egg masses.
Seeing a rather old and ratty looking pink egg mass of Hexabranchus sanguineus on the slope at Baturinggit, I took a closer look and found these two Favorinus eating the eggs.
Created 21
May 2019
Updated 17 December 2022