Not to belitle the discussion of types, but there are several other
types worth mentioning that never get on labels:
1. Tintype: Photo of a Holotype
2. Toetype: Rare shell one stumbles on.
3. Sintype: Shell found at a nude beach when your wife thinks you are
hard at work at the office.
4. Yentatype: Shell your mother-in-law gives you for Christmas.
I'm sure there are others.
Anon