Any wolves/canines on this planet are not domesticated - they are wild! In fact, they probably eat the puffball kangaroo rats. ... Just FYI. Unfortunately, Shiro would not be able to adopt a dog from this planet. There will (very, very) likely be canine adoptables in a future system.

However, if you want for him to have dog right now, that can be his gift from Atroma instead of a regain from home! Same stipulation of "no larger than 5 feet" applies, but it is an option.