First report of pectine malformations in the genus Euscorpius

Body malformations and anomalies in scorpions are reported from time to time, but are generally quite rare. One of the most famous cases was Pepe - The two-tailed scorpion (a Centruroides excilicauda with two tails). In a recent article, Miroslav Saric and Jovana Tomic report about malformed pectines in a scorpion in the genus Euscorpius Thorell, 1876 (Euscorpiidae).

Teratology in Scorpions is discussed.

Abstract:
A teratological change in a pectinal organ of Euscorpius cf. carpathicus (C. L. Koch, 1837) from Serbia had been examined using SEM (Scanning Electron Microscopy), and compared to specimens with normally developed pectines. Possible reasons for this anomaly are discussed.

Reference:
Šarić M, Tomić J. The first record of malformed pectines in genus Euscorpius (Scorpiones: Euscorpiidae). Euscorpius. 2016 (221):1-10. [Open Access]

Thanks to Miroslav Saric for informing me about their article!