Barkley is a male Malchi, shown here at 2 years old and 5 pounds (2.3 kg). His coat is sooooo soft. He is a Maltese / longhaired Chihuahua mix.
The Malchi is not a purebred dog. It is a cross between the Chihuahua and the Maltese. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.
Leonidas the black and white Malchi (Chihuahua / Maltese mix breed dog)
Barkley the pure white Malchi at 2 years old
Barkley the pure white Malchi at 2 years old
Jasper the Malchi (Chihuahua / Maltese mix breed dog) at 4 years old wearing a jean jacket
Jasper the pure white Malchi (Chihuahua / Maltese mix breed dog) at 4 years old with her bone and toys
Bailey the female Malchi puppy at 5 months old, weighing in at about 6 pounds (2.7 kg). She's a Maltese / longhaired Chihuahua mix. She has a very soft coat. She is wearing a shirt in this picture.
Bailey the female Malchi as a puppy at 4 months old after her first haircut
Bailey the female Malchi as a puppy at 9 weeks old