Three new mammillarias

Hello I bought three mammillarias, or at least that's what I think, but deconozco their names. Podiais identify ?. They are in pots of 6 cm.










Many thanks

Good evening,

I would like to say - two new Mammillaria. . .

No.1 should be Eriosyce senilis Syn. Neoporteria nidus v. senilis

No.2 should be Mammillaria carmenae

No.3 should be Mammillaria . . . ???


Best wishes

K.W.

And I saw those big thorns rare, but .........

The n-3 could be marcosii?

Thanks for your help

No 3 is not marcosii.
I'm not 100% certain, but I'd suggest one of the forms of M. decipiens.

I think that No3 coluld be really Mammillaria marcosii maybe overly powered (i don't know if the term is correct).
With a more mineral substrate and a sunniest exposure maybe we could see his true appearance.

On further inspection of the photo, I can see a very few of the central spines which appear to be hooked, not much but just a small hook on a few, mostly on the left side of the photo.
Therefore Maurillio could well be right in his assessment. The plant certainly needs more light and less water and fertiliser, it looks too open and lush.