Print San Diego’s Mitek Systems, a maker of mobile check deposit and identity verification technology for financial services firms, has acquired a biometrics startup in a stock and cash transaction valued at $49 million. The acquisition of New York-based ID R&D gives Mitek face- and voice-based identification capabilities to integrate into its Mobile Verify, Mobile Deposit and other apps. The two companies already had been working together for a couple of years, said Sanjay Gupta, Mitek’s vice president of product and corporate development. ID R&D’s technology helps Mitek determine “liveness” in selfie photos submitted as part of the Mobile Verify process — pinpointing whether a submitted selfie is real or a photo-of-a-photo from a fraudster.