I have this labeled as Parodia uebelmanniana v crassigibba. I have a feeling the name is incorrect. So help ol' Doc out with a correct name. Last year it had a huge head of flowers, this year only four )-:
Could be. Here is a link to what it is suppose to look like so you can compare:
Here is a link that might be useful: Parodia microsperma subsp. microsperma
I think yours is Notocactus uebelmannianus. The sheen on your blooms is more than I remember on mine. Pretty! I was going to say if it had crassigibba in the name, that would have a pale yellow bloom, but I'm finding conflicting info/names.
Notocactus and a few other species combined to form parodia a few years ago ... so the name is correct