White albinos lack both xanthophores and melanophores.  If they do have iridophores, they are confined solely to the gills.  They look very similar to Leucistic axolotls.  However, they lack the dark eyes.  Eyes make appear pink, red, or white in color.  As a result, they tend to have more light sensitivity than the other morphs.  However, keep in mind every specimen is different.   The skin can be either white, pale pink, pale yellow, or cream in color.   Typically, the gills darken to a deep red over time.   Juveniles can even appear translucent!