It is similarly unnecessary to follow an eg list with etc, as eg already implies an incomplete list, and either eg or etc should be used. This blog entry points out a nice distinction between the two:. You need to use e. g.

Exempli gratia - for example i. e. Id est - that is viz. Videlicet - that is sc. Scilicet - namely (see viz) in contradistinction to i. e.