New mammillaria's, no name :-(

[eddytrain]

Hi everyone,

I just bought new Mammillarias, and of course they were sold with no name.

Has anyone an idea about these ones ?

Thanx a lot,
Eddy

A)






B)






C)




D)






E)
What do you think this is ? I thought about a Echinocactus grusonii, but the spines are unusual.






F)
I have no idea what this can be.

[teo]

C - Mammillaria polythele inermis
E - E grusonii brevispinus

[vlani]

A,B - Mamm.bakebergiana
D - Mamm.zeilmaniana
F- Echinopsis leucantha