Millipedes from Lab (id request)

[BenLeeKing]

In my invertebrates biology lab, I was given one of these millipedes. It was not specified what species it is, so I checked the company they were ordered from:Carolina Biological, but they also did not specify what species they are...
My current guess is O. ornatus.

 

[LawnShrimp]

I second ornatus. The head structure and size seem right for this species.