hi Princeton, this good boy is a 4 year old mixed breed. We suspect there is chihuahua in him but your guess is as good as ours. He and several other dogs were brought to local animal shelter when the owners were not able to care for them. He is 17 lbs. Princeton is a good and curious pup that cannot wait to find his forever home. He allows us all handling and did well on the leash. He is a nicely behaved mister that will make his next family very lucky. He would need to meet any resident dogs. He will come neutered, microchipped, vaccinated, 4dx tested. **If you are serious about adoption, please start by filling out the adoption application on our website www.phoenixanimalrescue.com His adoption fee is $450** Phoenix Animal Rescue Chester Springs, PA Kennel License #5152