AbstractIn his examinations of the ecological parties of Belgium and West Germany, Herbert Kitschelt argues that he has found a new form of political representation that defies patterns of behaviour outlined for political parties by all previous scholarly work. These parties, which Kitschelt calls “left-libertarian,” are unique because they lack the organizational structures common to traditional parties, and include in their membership constituencies that are normally more comfortable in social movements. This article compares the political platforms of these parties and the sociological characteristics of their activists with those of the Montreal Citizen's Movement (MCM) and concludes that the MCM is indeed a left-libertarian party. However, an examination of the MCM reveals that although Kitschelt has found a new form of political representation in the left-libertarian party, this new form does not actually defy the developmental patterns outlined by the classical studies of political parties.