In this uncommon anomaly there is absence of one or more central digits, resulting from the failure of develop-
ment of one or more digital rays. The hand or foot is split into two parts by a deep cleft produced by the absence of the third metacarpal (or metatarsal) and associated phalangeal bones. The 1st & 2nd and 4th & 5th digits are partially or completely fused. The two parts of the cleft hand (or foot) appose each other and act like a lobster claw.