Mojeño Trinitario (Arawak, Bolivia) shows a middle marker -wo that encodes, among other functions, the coreference of subject and object in the same clause, within reflexive constructions. The middle marker -wo is not only used for prototypical reflexive situations (the central interest of this volume), but also for situations types that are best considered middle (in line with Kemmer 1993), including grooming, non-translational motion, other body actions, translational motion and positionals, reciprocals, mental events (cognition and emotion), and spontaneous events. The middle marker -wo can also be used in situation types where it just adds various types of emphasis on the subject. Interestingly, the marker -wo is only one of several middle-marking strategies in the language. Coreference other than between the subject and the object, within a clause or beyond the clause, are left unmarked, as the language has neither a set of reflexive pronouns nor of reflexive possessor indexes. Coreference beyond the reflexive construction is therefore left as a possible interpretation, depending on the semantico-syntactic and discourse context.