scūtŭlum, i, n. dim. [scutum].
I A small shield , Cic. N. D. 1, 29, 82.—
II Plur. : scutula operta, the shoulder-blades , Cels. 8, 1 med.
scūtulum ī, n dim.scutum, a small shield : cum scutulo. ...
An Elementary Latin Dictionary