Carpenter Ants or not?

6188  Can you please identify these for me? We want to make sure that they are not carpenter ants.

Number 6188 – This does have the appearance of a carpenter ant (Camponotus sp.), but a clear view from the side would confirm this. The top of the thorax of a carpenter ant is smoothly rounded, whereas that of most other ants is not – Click here for an image.