What is the common way to distinguish the Manx cat because of the cat body-type mutation?
Manx cat The Manx cat ( , in earlier times often spelled Manks), is a breed of domestic cat ("Felis catus") originating on the Isle of Man, with a naturally occurring mutation that shortens the tail. Many Manx have a small stub of a tail, but Manx cats are best known as being entirely tailless; this is the most distinguishing characteristic of the breed, along with elongated hind legs and a rounded head. Manx cats come in all coat colours and patterns, though all-white specimens are rare, and the coat range of the original stock was more limited. Long-haired variants are sometimes considered a separate breed, the Cymric. Manx are prized as skilled hunters, and thus have often been sought by farmers with rodent problems, and been a preferred ship's cat breed. They are said to be social, tame and active. An old local term for the cats on their home island is stubbin. Manx have been exhibited in cat shows since the 1800s, with the first known breed standard published in 1903.
Kurilian Bobtail The Kurilian Bobtail is a cat breed (or breed group, depending on registry) originating from the Kuril Islands, as well as Sakhalin Island and the Kamchatka peninsula of Russia. Short- or long-haired, it has a semi-cobby body type and a distinct short, fluffy tail. The back is slightly arched with hind legs longer than the front, similar to those of the Manx. The breed is also called the Kuril Islands Bobtail, Kuril Bobtail (both often misspelled "Kurile") and Curilsk Bobtail, and may be referred to without "Bobtail". It is sometimes also spelled Kurilean. The original short-haired variant is a natural breed, known on the islands for over 200 years. As selectively bred pets, they have been popular in Russia and to some extent other parts of Europe, especially for their rodent-hunting abilities, since the middle of the 20th century, but remain rare in North America as of 2011 .