[Antigen-antibody type precipitation reactions between secretory products of different regions of the oviduct of Pleurodeles waltlii Michah].

"Antigen-antibody" like reactions between products of secretion of different parts of the Pleurodeles waltlii Michah's oviduct have been observed using the usual immunodiffusion methods. The possible physiological importance of such reactions in egg-jelly formation and in the phenomena associated with the fecondation (particularly capacitation) is discussed.