Critically Endangered:
* Amur Leopard (Panthera pardus orientalis): Found only in the Russian Far East, with an estimated population of less than 100 individuals.
* Sumatran Tiger (Panthera tigris sumatrae): Found only on the Indonesian island of Sumatra, with an estimated population of less than 400 individuals.
* Snow Leopard (Panthera uncia): Found in the high mountains of Central Asia, with an estimated population of less than 4,000 individuals.
* Javan Leopard (Panthera pardus melas): Found only on the Indonesian island of Java, with an estimated population of less than 250 individuals.
* Saola (Pseudoryx nghetinhensis): A unique bovine-like species found only in Vietnam and Laos, with an estimated population of less than 100 individuals.
Endangered:
* Clouded Leopard (Neofelis nebulosa): Found in Southeast Asia, with an estimated population of less than 10,000 individuals.
* Fishing Cat (Prionailurus viverrinus): Found in Southeast Asia, with an estimated population of less than 10,000 individuals.
* Sunda Clouded Leopard (Neofelis diardi): Found in Southeast Asia, with an estimated population of less than 2,500 individuals.
* Bengal Tiger (Panthera tigris tigris): Found in India, Bangladesh, and Nepal, with an estimated population of less than 2,500 individuals.
* African Wild Cat (Felis silvestris lybica): Found in Africa, with an estimated population of less than 1,000 individuals.
Vulnerable:
* Leopard (Panthera pardus): Found in Africa and Asia, with an estimated population of less than 7,000 individuals.
* Cheetah (Acinonyx jubatus): Found in Africa and Iran, with an estimated population of less than 7,100 individuals.
* Caracal (Caracal caracal): Found in Africa, the Middle East, and Central Asia, with an estimated population of less than 10,000 individuals.
* Serval (Leptailurus serval): Found in Africa, with an estimated population of less than 10,000 individuals.
Note: These are just a few examples, and there are many other rare members of the cat family. The rarity of a species is often determined by factors such as habitat loss, poaching, and human conflict.
It's important to note that these population estimates are just approximations, and the actual number of individuals may be higher or lower.