"Large specimens typically have 1 or 2 round, black spots on the midline of the dorsum, one just posterior of the rhinophores and the other just anterior of the branchial plumes, small specimens usually lack these spots."
Comment from Gary McDonald
Large specimens typically have 1 or 2 round, black spots on the midline of the dorsum, one just posterior of the rhinophores and the other just anterior of the branchial plumes, small specimens usually lack these spots.