The real difference I have noted in this
type is that the tails of the capricorns are sometimes shown, either connected or unconnected to their bodies, as on the coins below, but they are usually omitted, as on the two examples you show.
I think the inclusion or omission of the tails is worth recording and also collecting, though I doubt the two variants were considered different
types; it's just a fuller and a simplified version of the same
type.
The difference you show, capricorns connected or unconnected in the middle, I would consider just a different way of rendering the same
type, a matter the engravers could decide as they liked.