Whaaaa? I find that VERY hard to believe, or at least the statement lacking qualifiers (e.g. replacing the 406 only).
All Dash - 10 of the critters. 6 short ones, 4 long ones
http://www.customs.gov.au/site/page.cfm?u=5789
http://www.customs.gov.au/site/page.cfm?c=6805