thanks for your reply, I do this but my problem is how to get multiple (different) labels in one list of figures.
when i do the update this is the result:

Figura 1 : blabla
Figure 2: blabla
Fig 1: blabla
Fig 2: blabla
Figure 1: blabla
Figure 2: blabla

but i want to get a list of figures like this :

Figura 1 : blabla
Fig 1: blabla
Figure 1: blabla
Figura 2 : blabla
Fig 2: blabla
Figure 2: blabla