I do like a dark spined dark skinned spegazzinii. I have had this one since 2011 and this is the first year it has flowered. I find it slow and this year whilst it has flowered it seems to be struggling to grow spines.
The spegazziniis are my favourite gymnos. There are so many different types. This one has a green body with pale spines. I like the pinkish hue to the new spines as they grow.