Dog never manages to attain that beguiling buzz that Black and the Catholics captured on their first two albums. "The Swimmer," "I've Seen Your Picture," and "Stupid Me" all have the resonance and distinction of Black's unique sound, but the results are humdrum and unvaried. Even the tracks on which Santiago contributes -- "Blast Off," "Robert Onion," and "Dog in the Sand" -- teeter on mediocrity. The reverb and crash typical of Santiago's unrivaled guitar playing never surfaces with much intensity. Songs such as "Bullet" and "Llano del Rio" sound like Pixies B-sides: "Bullet" explodes with the patented odd chord progression and howling lead guitar, and "Llano del Rio" features Black rasping in Spanish while Dave Phillips, not Santiago, wrestles with the six-string. But they're the only bright spots on an otherwise dim album. Ultimately, Dog is a middling effort at banking on the Pixies' mystique; fans are better off digging out their copy of Doolittle than relying on Dog for their Pixies fix.