Hiya Rose!
I think yours is a match to that one yes, but I'm not convinced that the eBay one is actually Bitossi - especially as it's not marked with the impressed mark. There seems to be a little keyword spamming in that title as well!
The Bitossi horses I've seen have four separate legs too rather than having the front and rear ones combined like yours/eBay one.
Examples [url#http://www.designonline.co.nz/Products/Rimini-Blu;jsessionid=25VlMTqQsZRthQP1R674LhsxCwLw7SL291RWsydtQywmQ5v2rf5GWvn2m5G5ZvNG3CnvM1DnvpZv4DQTtClLgz5MYMyFzSB0bNn9DMJXzch8nrTfnDMghjSD9jsnYKQf!411379335]HERE[/url]
I'd be happier if someone who really knows about Bitossi were able to take a look and confirm they both are.
I've never seen Bitossi in the colour of yours... it looks as if it's unglazed, is that the case?
Whatever they are they are really nice, but my suspicion is Italian but not Bitossi.