Name for Mammillarias

I have some mammillarias that I dont know their name ¿Can you help me? thanks
1.-

2.-

3.-

4.-

Hi Merceca,

Slightly difficult with the above views.Can't tell if some spines are curved or not.
My suggestions however are listed below.

1. Mammillaria magnimamma
2. Mammillaria uncinata
3. Mammillaria heyderi
4. Mammillaria mazatlanensis.

I'd go with Delandmo's suggestions. Not entirely happy about 3, but haven't got any better one.

thanks