Submatucana madisoniorum

I stumbled on an image of this cactus when I was looking for something else (which is pretty much how I've been able to identify most of what I bring home). It is a Submatucana madisoniorum or a Matucana madisoniorum depending on what time you are trying to identify it (it is apparently undergoing reclassification as we speak to the former from the latter). After reading up some more on it's preferred conditions, I'm going to have to drop it down to the lower shelf (it doesn't like intense, direct sunlight).