Small hexadecahemihexadecachoron

The small hexadecahemihexadecachoron, or shahoh, is a uniform polychoron. It has 16 octahedra and 8 central octahemioctahedra, with 4 octahedra and 4 octahemioctahedra at each vertex.

As well as being isogonal, it is also isotoxal.