Snub square antiprism

The snub square antiprism, or snisquap, is one of the 92 Johnson solids (J85). It consists of 8+16 triangles and 2 squares.

It can be constructed from a square antiprism by expanding the two halves outward and inserting a set of 16 triangles in between the halves.

Related polyhedra
The snub square antiprism can be considered to be the square case in the family of snub antiprisms. The snub triangular antiprism is the regular icosahedron, and the snub disphenoid or snub digonal antiprism is another Johnson solid. No other members of this family can be made convex and regular-faced (the snub pentagonal antiprism can be made with regular faces, but is concave).