Six new Salmonella sub-genus III serotypes (Arizona) were isolated from snakes in Israel. Their antigenic structure was established as follows: S. arizonae 16:Z52:Z35 (Ar.25:26-21); S. arizonae 18:1,v:e,n,x,z15 (Ar.7a,7b:23-28); S. arizonae 21:i:1,5(7) (Ar.22:33-30); S. arizonae 41:c:e,n,x,z15 (Ar.13:32-28); S. arizonae 51:k:z35 (Ar.1,2:29-21); and S. arizonae 53:1,v:z35 (Ar.1,4:23-21).