A character of Terry Pratchett's Discworld novels as a name used by Agnes Nitt during her period as a member of a coven led by Diamanda in the book Lords and Ladies. Later, Agnes used the name again in Maskerade. In Carpe Jugulum, Perdita was described as an alter ego that coexist with Agnes in the same body.
The adult female liver spotted Dalmatian found in the road by Mr. and Mrs. Darling in the book The Hundred and One Dalmatians by Dodie Smith and who was taken in by them to serve as a foster mother for the 15 puppies