Stumpy, blunt-nosed, two-finned surfboard design invented by San Diego kneeboarder Steve Lis in 1967, featuring low rocker and a split tail, and later adapted for stand-up surfing; San Diego surfers Jeff Ching and Danny Disell were among the first to try their hands at riding the fish while standing rather than kneeling.

While the fish was recognized as a small-wave speed machine—Jim Blears of Hawaii used a 5' 10" fish to win the 1972 World Championships, held in sloppy waist-high surf in Sa...