 Fish-heads. Building on an example of Byrne’s (2001), Levine (2003) supposes that there are creatures whose eyes are on opposite sides of their heads and whose heads are fixed, so that they never look at an object with both eyes. Now, imagine one such creature whose eyes’ lenses are color-inverted with respect to each other. (It is not that one lens has been inverted; the creatures are born thus mismatched.) It seems that identically colored objects simultaneously presented will look, say, green to one eye but red to the other. Yet the same worldly color property (i.e., a reflectance property of whatever sort) is being represented by each eye. Now, every eye is normal within the population, so neither can easily be described as misrepresenting the colors of red objects. Each eye just sees the colors differently, and so the difference is not exhausted by the common representatum.