* Orbifold signature: 
* Coxeter notation: [(&infin;,2),&infin;] or [&infin;,(2,&infin;)]
* Lattice: rectangular
* Point group: D
* The group pmg has two rotation centres of order two (180°), and reflections in only one direction. It has glide reflections whose axes are perpendicular to the reflection axes. The centres of rotation all lie on glide reflection axes.
;Examples of group pmg