1. Iberian Wolf (Canis lupus signatus): Found in Northwestern Spain and Northern Portugal, it's listed as Critically Endangered.
2. Red Wolf (Canis rufus): Native to the Southeastern United States, now critically endangered with small captive and introduced populations.
3. Mexican Wolf (Canis lupus baileyi): Found in the southwestern United States and Mexico, classified as critically endangered.
4. Eastern Wolf (Canis lycaon): Native to Northeastern Canada, classified as a species of special conservation concern in Canada.
5. Rocky Mountain Wolf (Canis lupus irremotus): Found in the Northern Rocky Mountains, it was delisted due to increased population but still monitored.
6. Vancouver Island Wolf (Canis lupus crassodon): Restricted to Vancouver Island, it's considered endangered or possibly critically endangered.
7. Ethiopian Wolf (Canis simensis): Native to the Afroalpine moorlands of Ethiopia, the rarest canid in the world and critically endangered.
8. Tundra Wolf (Canis lupus albus): Inhabits parts of the tundra across Arctic regions, some populations are declining and considered vulnerable.
It's important to note that some wolf subspecies can have fluctuating conservation status based on population growth or declines, as well as ongoing conservation efforts.