 I'd have to go with maybe a lavish terrier-hound-chihuahua-looking kind of mix. Tremendous dog. I'd also like to point out Satchmo's coloring. A white-gray-brown-black brindle. Simply marvelous. You know, it's such a treat to watch a dog like this. Now, let's see him in action. Look how he makes eye contact with his person. That's actually known as the treat stare. How intuitive. And now he appears to be excitingly turning in circles. Ah, the happy dance. So common with this group.