The review of the literature shows, that in spite of being a concept that comes from the middle of the last century (Hubertus Tellenbach, 1914-1994), Typus melancholicus (TM) continues to be studied in psychopathology and used in research as a predictor for the development of a new major depressive episode.
Ambrosini A, Stanghelliini G, Langer A: Typus melancholicus from Tellenbach
up to the present day: a review about the premorbid personality vulnerable
to melancholia. Actas Esp Psiquiatr 2011;39(5):302-11