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Abstract

The discovery of a new structure on the laterobasal aspect of the telson aculeus is described here for the first time. This structure, termed the laterobasal aculear serrations (LAS), is a row of minute denticles located on each side of the aculeus base, found exclusively in scorpion family Vaejovidae, thus potentially providing a new synapomorphy for this New World family. The LAS structure of major representative vaejovid genera and Vaejovis groups is illustrated with SEM micrographs. Also provided is a comprehensive list of non-vaejovid Recent scorpion genera examined where the LAS structure was found to be absent.

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p2006_45_1.pdf (3892 kB)
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p2006_45_2.pdf (5196 kB)
High Resolution File part 2

p2006_45_3.pdf (7031 kB)
High Resolution File part 3

p2006_45_4.pdf (5769 kB)
High Resolution File part 4

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