He is African American with brown eyes and brown hair.
Lam is described as five feet three inches tall and weighing about 145 pounds with black hair and brown eyes.
An Amber Alert was issued for a 1-year-old boy who was abducted near San Francisco, the California Highway Patrol said.
Authorities said they were searching for Makai's father, 30-year-old Jason Lam, in connection with the abduction.
Police say Lam abducted Bangoura on Thursday, May 18 at 3 p.m.
Police believe the suspect is driving a tan 2000 Toyota Corolla with a California license plate is 5SEY238.
It was unclear when the boy was due back and "could be anywhere right now", officials said.
The CHP says the suspect, 30-year-old Jason Lam, "may be suicidal" and should not be approached without law enforcement help.
The alert is in effect for the entire Bay Area.
Makai Bangoura is about 3' tall and weighs 40 pounds.
Anyone with information was asked to call 911.