Flabellina trophina

This large red flabellina (Flabellina trophina) has visibly textured reddish cores in its dorsal gills (cerata).  This nudibranch is known for having a long mouth [...]

The red flabellina (Flabellina trophina) is known for having a long mouth that protrudes forward and is often raised up above the substrate.  The reddish [...]