The list comes from the rules for carrying pets AS CHECKED BAGGAGE — '以下宠物以及与其杂交的品种均不适合航空旅行', 'unsuitable for air travel' — and extends to crosses of the listed breeds. The carrier's cabin programme is separate and runs only from nine cities and on three international routes; it publishes no breed list of its own, so the ban is applied to the rule as a whole. Dangerous breeds: large and medium terriers (Bedlington Terrier, Fox Terrier), Staffordshire Terrier, all boxers, all spaniels, all mastiffs, Pit Bull Terrier, Japanese Tosa Inu, Fila Brasileiro, Dogo Argentino, Malinois. The carrier adds a caveat of its own: the restriction covers only LARGE AND MEDIUM terriers, while small and toy terriers (West Highland White Terrier, Miniature Schnauzer and the like) travel normally — which is why the generic 'terriers' line is not carried into the machine-readable field and only the individually named breeds are. Snub-nosed dogs and cats: all bulldogs (French, English), all pugs, Boxer, Cavalier King Charles, Shih Tzu, bull terriers (Bull Terrier, Staffordshire), American Bully, Boston Terrier, Brussels Griffon, Affenpinscher, English cocker, English toy spaniel, Lhasa Apso, Pekingese, Chow Chow, Japanese Chin, Shar Pei; cats — Burmese, Himalayan, Persian, Exotic Shorthair ('Garfield'), British Shorthair. Unsuited to heat and altitude: Samoyed. Separately: the A320NEO and A321NEO do not carry pets at all by aircraft type, and connecting carriage of pets is not arranged — only a single direct sector.