2 literature references for Soteriscus colasi Vandel, 1960A:

Author: Schotte, M., B.F. Kensley, and S. Shilling.
Year: 1995
Title: nwards). World list of Marine, Freshwater and Terrestrial Crustacea Isopoda. National Museum of Natural History Smithsonian Institution: Washington D.C., USA.
Author: Vandel, A.
Year: 1960
Title: Les isopodes terrestres de l'Archipel Maderien. Memoires du Museum National d'Histoire Naturelle, Paris Serie A. Zoologie 22(1):1-156.