E. S.  Tarifeno, ?Burrowing pattern and its variation with different kinds of substratum in the Chilean sipunculan Themiste hennahi Gray 1828 (syn. Dendrostomum peruvianum Collin 1892)?, in Proceedings of the International Symposium of Sipuncula and Echiura, M. E.  Rice and Todorovic, M., Eds. Belgrade: Naucno Delo Press, 1975, pp. 251-266.

E. S.  Tarifeno, ?Resistance to environmental stress of temperature and salinity in the Chilean sipunculan Themiste hennahi Gray 1828 (syn. Dendrostomum peruvianum Collin 1892) _______________________?, in Proceedings of the International Symposium of Sipuncula and Echiura, vol. 2, M. E.  Rice and Todorovic, M., Eds. Belgrade: Naucno Delo Press, 1975, pp. 29-38.