Australia scratched out a 101-run lead over Bangladesh on Saturday in the second Test, with 18 wickets falling on day one after Mitchell Starc and Shoriful Islam both took six in a fast-bowling masterclass.

Home skipper Pat Cummins won the toss in Mackay and his pacemen feasted, determined to bounce back from a shock nine-wicket loss in the first Test at Darwin.

They skittled Bangladesh for 64 with an irrepressible Starc the destroyer in an incredible spell of swing and seam, taking five wickets in 22 balls during the morning session to end with 6-12 from 10 overs.