Reddish brown coloration can vary with background. 8 suction cup-filled arms are 3-5 times the length of the body. Look for a pile of discarded shells to find the opening to a den.
Flat body with a small, rounded tuft of gills at the back of the body. (Similar sp. Hudson’s yellow margin dorid is found only shallow subtidal depths and has larger sensory organs in the front.)
Numerous paired, branching gills along its back. Color is highly variable, ranging from white to gray, orange or pink. Feathery cerata are often tipped with orange, yellow, or purple. Large.