Mini's Market and Deli at 4140 Redwood Highway in Terra Linda was robbed at about 8:50 p.m. and the Picante Taqueria at 340 Bellam Blvd. was held up at about 9:15 p.m., police spokeswoman Margo Rohrbacher said.
Cash was taken in both robberies. Police today released an image captured during the taqueria robbery.
The suspect is a white man with a heavy or medium build and tattoos on both arms. He was wearing a ski mask and had a black handgun.
The image shows that the robber has a distinctive star tattoo at the base of his right elbow, Rohrbacher said. The Mini Mart armed robber was wearing a gray overcoat and black shirt.
Police are asking for the public's help in identifying the suspect. Anyone with information is asked to call San Rafael police at (415) 485-3000 or contact Crime Stoppers at (800) 222-8477 or online at www.bayareacrimestoppers.com.