Fusion of pectinal teeth in Scorpio kruglovi Birula, 1910 (Scorpiones: Scorpionidae)
A rare teratological anomaly of pecten is described and illustrated: a case of fusion in pectinal teeth in the scorpion Scorpio kruglovi Birula, 1910). It was observed that 7th and 8th teeth are fused in the right pecten. The resulting fused tooth is larger than other teeth. A smaller fulcrum located inside of the large, fused tooth whereas other fulcra are located between normally developed teeth.