A long dog (also long-dog or longdog) is any dog of sighthound type, whether pure-bred or not. It is usually a cross-breed between two sighthounds of different breeds, one of which is usually a Greyhound It is distinct from the lurcher, which is a cross between a sighthound and a working dog, usually a terrier or herding dog. And it is larger than a Feist, which is an American cross. Notes Further reading E.G. Walsh (1977). Lurchers and Longdogs. Woodbridge: Boydell. (1990). Longdogs by Day. Woodbridge: Boydell. D.B. Plummer (1993). Lurcher and Long Dog Training. London: Robinson Publishing. Dog types Sighthounds Dog crossbreeds