Which Mammillaria is this one

This one seems to take various forms and shapes. Which one is it ?

Andreas

Suggest it may be a form of M. Karwinskiana.

Not sure about karwinskiana, as this species has either 0 or 1 central spines usually, and usually bristeles are more evident that wool in the axils.
Spine-wise and wool-wise it looks more to me like a scrippsiana, but not certain.

Thanks you both for your input. I will tend to agree with Chris on this one as I have examined several pictures of scrippsiana and this seems to be closer to the one that I have.

Andreas

I would not discard totally M.karwinskiana and offer spp beiselii has a suggestion. This looks very much like a Micheal Lacoste collection which I have. A picture of the plant in flower would help.
I'm afraid I cannot offer a picture of my plant yet has I am away from the collection until the end of Feburary.

Hey, Tam, good to see you're on line again!
I think you are right not to discard karwinskiana totally, but it's not my first choice, largely because the plant shown has 2 centrals, and no obvious bristles. At least the top central looks like a central to me rather than a strong radial.
Hopefully it will flower and we can be more definitive.