Id needed for two mamillarias

Need help from the community to ID the following Mammillarias. Hope some expert can shed some light on the species.

Mammillaria No 1





Mammillaria No 2

Can anyone help me out in this one? I am not even sure if its a mammillaria.

Mammillaria n.2 could be Mammillaria prolifera

Both of these plants need a lot more light. I'd agree with Maurillio that #2 could be prolifera, but the heads should be round, not elongated like they are. As for #1, I'm really not sure, but wonder about ernestii?

maurillio and Chris43 thank you very much for your inputs.

Can you please explain how you identified that these needed more light? I am a newbie and any info you can give will be of importance to me.

Plants that don't have enough light tend to grow rather elongated. Mammillaria prolifera has heads that are mostly round, and they are not on this plant. On the first plant, the body seems to be a bit too open, which could be too much water or too little light, or indeed both.
But they will recover if you can change their environment a bit. Where do you keep them at the moment?

I keep them under a shade net.. They receive light but not direct sunlight. I guess I will have to move them to full sunlight.

If you can, try to acclimatise them gradually to the stronger light, maybe an hour or two to start with then three or four. Otherwise, they might get sunburnt.

Great idea Chris43.. But even if I acclimatize them, will strong sunlight all through day kill them? What about rain? Will keeping them in an open area prone to sun and rain kill them?