Acronym	siddid (old: siided)
TOCID symbol	sED*
Name	snub dodecadodecahedron, chaugnar faugn
VRML	⭳ ©
Vertex figure	[5/2,3,3,5,3]
Colonel of regiment	(is itself locally convex – no other uniform polyhedral members)
Face vector	60, 150, 84
Confer	compounds: disdid
External links

As abstract polytope siddid is isomorphic to isdid, thereby replacing prograde pentagrams by retrrograde ones.

Incidence matrix according to Dynkin symbol

s5/2s5s

demi( .   . . ) | 60 |  1  2  2 |  1  1  3
----------------+----+----------+---------
      s   2 s   ♦  2 | 30  *  * |  0  0  2
sefa( s5/2s . ) |  2 |  * 60  * |  1  0  1
sefa( .   s5s ) |  2 |  *  * 60 |  0  1  1
----------------+----+----------+---------
      s5/2s .   ♦  5 |  0  5  0 | 12  *  *
      .   s5s   ♦  5 |  0  0  5 |  * 12  *
sefa( s5/2s5s ) |  3 |  1  1  1 |  *  * 60

starting figure: x5/2x5x