A transmission, includes: a shift member, adapted to be moved in a shifting direction and a selecting direction; a plurality of shift lugs, each of which has a pair of first claw portions spaced apart from each other in the shifting direction, and which are arranged in the selecting direction; and a plurality of shift forks (20,21,22,23), connected to the shift lugs (40a,40b,40c) via shift rails (30). On a predetermined shift lug of the plurality of the shift lugs, a second claw portion is provided in such a manner as to project from one of the first claw portions in the selecting direction so that, in a shifting position, the second claw portion accommodates a displacement of the shift member from the adjacent shift lug side in the selecting direction, and the second claw portion is brought into abutment with the shift member in association with the shift member being displacement from the displacement accommodated state in the shifting direction so as to cause the corresponding shift fork to move from the shifting position to a neutral position.