… that plurinominal candidacies are eliminated.    From Wordnik.com.  [Global Voices in English » Mexico: Null Ballots and Low Turnout Expected on Election Day] Reference

The lower chamber will be made up of 130 seats, from which 68 will be uninominal (single district / simple majority / based on population and territory) and 54 plurinominal (party lists headed by President and VP / proportional representation) and 8 "special indigenous" seats (simple majority / indigenous districts).    From Wordnik.com.  [Mabblog] Reference