That material you're seeing is just one in the library under Davinci_Male01_TrueBones which is a Softimage Model. Using Model's you can have multiple scene objects organized containing the same names in a scene without having naming mismatches. They more than likely worked with large scenes but to answer your question, no, in Softimage bones do not have a material. I also believe @@Corto knows how to get proper .skin files as well as .shader files automatically written using Softimage.