Looks like Mammilaria gracilis. Hablu

Yes, it is mammillaria gracilis. Notorious for breeding like rabbits with those pups that very very very easily fall off and root up elsewhere, haha.

Otherwise a very pretty and compact little plant.

Toni-Marie

Thank you for the ID.

I have mammillaria gracilis f arizona snowcap which looks so different to this one that I hadn't realised this was related.

mammilaria vetula ssp. gracilis to give it its full name.
I have 2 in a pot, one sightly different(convinced theyre 2 seperate ssp)