Snee met with the team Monday, then decided to end his NFL career after 10 seasons. He has had two hip surgeries and now is most troubled by right elbow and wrist problems.
The 32-year-old son-in-law of Coach Tom Coughlin was a second-round pick in 2004 and has made four Pro Bowls. He was to be the anchor of a revamped offensive line this season.
Dareus, who is from Alabama, was arrested and charged with possession of a controlled substance and drug paraphernalia after being stopped by a state trooper on May 5.
The charges will be dismissed and potentially expunged if the 2011 first-round draft pick successfully completes the program.
Atkins missed seven games and the Bengals' one playoff game last season after undergoing surgery on his right knee. He was injured on Oct. 31 at Miami and was not expected to be ready for the start of training camp.
Hall tore his right Achilles’ tendon on Oct. 20.
Atkins and Hall, who started only five times last season, are eligible to come off that list any time during the preseason.