In the Visual Memory Subtest, there are two parts. The first part is the Visual Memory: Learning Phase, in which you will have to memorize a number of irregular shapes, parts of which are blackened. The second part is the Visual Memory: Recall Phase, which you will see about 30 minutes later, after completing two other subtests. In the Visual Memory: Recall Phase, you will need to identify the shapes you memorized during the Learning Phase. The items will be presented in the Recall phase as sets of identically shaped figures with different blackened parts. This web page provides some sample items for the Learning Phase.
These could be some of the shapes you have to memorize:

Later in the Spatial Test Battery, the same shape will be presented among different, though similar, figures. Click here to see some examples for the Recall Phase.
Remember that you will have to complete two other subtests before you are presented with the Recall Phase to identify the shapes you memorized earlier.
You can also view sample items for the Block Rotation, Surface Development and Perspectives subtests.