I checked a bunch of my photos too and it does not seem to be completely consistent. I have a couple photos of baby C. p. cristifer (particularly one from Kurt Belys) that have evident spots on some of their toes and they are much reduced and more faint then in C. globifer on the rest. In most pics they don't seem evident but it appears they can have them. I've never seen C. p. parsonii have any, however. I'll have to check a couple books when I get home for it too. As I said, Calumma oshaughnessyi ambreense definitely have them (not sure on C. o. oshaughnessyi though).
Chris