Retrosphenoverted tesseractitesseractihexadecachoron

The retrosphenoverted tesseractitesseractihexadecachoron, or rawvatoth, is a nonconvex uniform polychoron that consists of 16 regular octahedra, 8 truncated cubes, and 8 small cubicuboctahedra. 1 octahedron, 2 trunccated cubes, and 2 small cubicuboctahedra join at each vertex.

It is in the same regiment as the small rhombated tesseract.