There is no breed of cat called the Minx cat although the term
is widely found, and erroneously used, on the internet and usenet.
Advertisements regularly appear for Minx Cats, adding further credence
to this non-existent breed. The term is a common error made by people
unfamiliar with the
Manx cat, a tailless breed of cat originating from the Isle of Man,
Minx is sometimes colloquially used to indicate a miniature/dwarf form
cat. It is not a separate breed.
Mynx (with a 'y') is sometimes collooquially used to indicate a first
generation cross between a Manx cat and
breed or a hybrid between the Manx breed and the wild Bobcat. Some bobcat
hybrids are called Lynx e.g.
Desert Lynx and American Lynx due to their resemblance to a lynx.