SummaryA total of 675 stdrains of Salmonella bareilly received from different parts of India and France during 1959–92 were phage typed using six bacteriophages. Overall ttypability achieved was 90·8% with 23 distinctphage types excluding a group of untypable strains. Phage types have been defined in octal code. Simpson's coefficient was applied for diversity index having a value of 0·839. This system was found to be reproducible, stable and epidemiologically useful.