In 1900 Dr A. Penther described six new scorpion species. Subsequently, only one of these was regarded as a valid species while three were looked upon as uncertain and two as being synonymous with an existing species. In order to re-assess the validity of these species, the type specimens were borrowed from the Naturhistorisches Museum in Vienna. The curator, Dr J. Gruber informed the author that the specimens were not included in the Museum's type collection, but, it may be assumed that these specimens are Penther's original types for each bottle bears a label in Penther's handwriting. In each case the species name is followed by the letters "n. sp.", denoting a new species. The material was compared carefully with Penther's descriptions and measurements and accordingly, it may be assumed that the material examined is the original type series. Keywords: New species, Scorpionidae, South African scorpions, type material.