| Family names and spaces | WPV point group symbols |
| Tetragonal (E3) |
|
| Square oblique (E4) |
|
| Square rectangle (E4) |
|
| Square triclinic (E5) |
|
| (Square oblique)-al (E5) |
|
| Centred family |
|
| Primitive family |
|
| Square orthorhombic (E5) |
|
| Centred family |
|
| Primitive family |
|
| (Monoclinic di squares)-al (E5) |
|
| Di squares-al (E5) |
|
| Centred family |
|