differ in

differ in (something)

To have specific differences from someone or something else. I can tell the twins apart—they differ in that Jim has a birthmark on his cheek. This recipe differs from that one because it doesn't require eggs.
See also: differ

differ in something

[for people or things] to be different in a specific way or in specific ways. They differ only in the color of their eyes and the size of their shoes. They differ in size and shape.
See also: differ
References in classic literature ?
Domestic races of the same species, also, often have a somewhat monstrous character; by which I mean, that, although differing from each other, and from the other species of the same genus, in several trifling respects, they often differ in an extreme degree in some one part, both when compared one with another, and more especially when compared with all the species in nature to which they are nearest allied.