Crosslandia daedali is a species of sea slug within the family Scyllaeidae,[1] found in subtropical waters in the Eastern Central Pacific Ocean in Mexico and Costa Rica. It lives in benthic environments,[2] usually on algae within the genus Padina where it grazes on small hydroids.[3]
Crosslandia daedali grows to a length of 2.5 centimeters. Its color is described as being a greenish brown-orange, with brown and white lines on the sides and underside of the lobes. 6 small blue spots are found along the middle of the body, with most of them having fine black borders.