Bose returns to the Ravens after being waived to make room for cornerback Kyle Arrington just 13 days ago. He was initially signed by the Ravens on May 12 after a tryout during rookie minicamp.
A three-year starter at Rhode Island, Bose finished with 295 tackles in his career, including 125 last season. He also had 4.5 sacks, two forced fumbles and one interception last year.
DePriest was a first-team All-SEC linebacker who was considered a hard-hitter but had limited range.
The other 15 undrafted rookies still on the Ravens' 90-man roster: OL Darryl Baldwin, OLB Brennen Beyer, WR Daniel Brown, G Leon Brown, WR DeAndre Carter, OL Blaine Clausell, OL Nick Easton, OL Kaleb Johnson, QB Jerry Lovelocke, RB Terrence Magee, P/K Justin Manton, S Nick Perry, OL De'Ondre Wesley, WR Cam Worthy, CB Julian Wilson (injured).