mammillaria winterae

Question to Wolter. I have raised plants from seed I got from Mark Mc Cormack a few years ago, which in turn I believe might have come via the German society, for the above species. The seed came with the field no. WTH 322. Checking data sites reveal this to be mamm. lasiacantha, which clearly my seedlings aren't. They certainly look like m. winterae and there is only one m. winterae plant I have found closes to WTH 322 is 331. Would there be any other closes to the 322 that I have not found?