Montreal - Avon Cobourne scored two touchdowns and passed 100 yards in both rushing and receiving as the Montreal Alouettes defeated the Toronto Argonauts 41-10 and took over first place in the CFL East Division on Thursday night.

Jamel Richardson, with two, and S.J. Green caught TD passes as Montreal (4-1) won a fourth straight game and ended a three game winning streak by the Argonauts (3-2).

Quarterback Cleo Lemon scored a TD and Grant Shaw added a field goal for Toronto, which has lost seven straight against Montreal since 2007.

Alouettes slotback Ben Cahoon got more than the two catches he needed to pass former Calgary great Allen Pitts total of 966 career receptions and move into third place all-time. Terry Vaughn leads with 1,006 while Darren Flutie had 972.

The crowd of 25,012 saw the Alouettes control a game in which they contained CFL rushing leader Cory Boyd and the Argos' dynamic kick returner Chad Owens.

Cobourne set a personal high in total yards with 231 -- 115 on the ground and 116 in receptions -- and had his second career 100-100 game. He had 107 yards rushing and 103 in the air on Aug. 15, 2008 against Toronto.

On Montreal's first possession Anthony Calvillo competed passes on eight consecutive plays, capped by an 11-yard TD toss to Green.

But Lemon struck back with a long drive of his own and scored on a three-yard sprint around the right side at 14:31 of the first quarter.

A Cobourne turnover -- Montreal's first lost fumble of the season -- and a 55-yard pass to Ryan Christian gave Toronto the ball on the Montreal 18, setting up Grant's 31-yard field goal to give the Argonauts a 10-7 lead 5:53 into the second quarter.

It didn't last long, as a roughing the kicker call on Ejiro Kuale kept a Montreal drive going and backup quarterback Ricky Santos, only on the field for short-yardage situations, completed his first career TD toss when he hit Richardson from the one.

Montreal threatened again in the final minute, and the crowd booed as officials ruled that Green, who looked to have scored, was down on the goalline after a six yard pass. Duval then booted a 19-yard field goal.

A 51-yard completion to Kerry Watkins set up Cobourne's score on a one-yard run 9:05 into the third quarter.

Lemon was shaken up after a 17-yard carry and Dalton Bell came in. His pass was caught and fumbled by Owens and the ball became a hot potato until defensive tackle Eric Wilson picked it up and ran to the Toronto five. Calvillo then hit Richardson in the end zone.

Duval added a field goal and Cobourne scored his second TD of the game from three yards out with 2:40 left to play.

On a strange play in the first quarter, a measurement showed Montreal had stopped Toronto short on a third-and-inches play, but they then remeasured and gave Toronto the first down. Montreal's challenge of the spot was unsuccessful.