We observed the combination of the Robin sequence with perodactyly (hypoplasia and/or agenesis of the distal phalanx of the toes) and cardiac arrhythmia (ventricular extrasystoles occurring as bigemini or multifocal tachycardia with syncopal episodes) in 6 relatives in 3 generations. This familial association has not been reported before and probably represents a previously unrecognized heritable malformation syndrome.