The body identity is an important problem in itself as well as a term of reference for the problem of identity in general: the identity of an object, of a person, of a concept, of a nation, of a people, of a culture. In some respects, it may play a role similar to the role of Euclidean space for the understanding of other spaces occurring in science and in art or to the way in which natural languages are a term of reference in the study of other languages. The typology we are proposing in this paper is open to additions or modifications; it wants only to point out a possible approach and to suggest the complexity of the problem.