A hit and run accident in Danbury has left a motorcyclist hospitalized.  Connecticut State Police are investigating the evading incident, which happened on Route 7 northbound by the Federal Road exit.  The crash was reported shortly before noon on Saturday.  A black Dodge Challenger or Charger with dark tinted windows, Connecticut license plates, and a loud exhaust--with a german shepherd dog in the vehicle, struck a motorcycle and fled north.  The motorcycle came to final rest in the left lane and the driver sustained injuries. The damage on the evading vehicle will be likely on the driver's side of the vehicle. Anyone with information is asked to contact Trooper Cassavechia, Troop A, 203-267-2240.