Original Research

A Re-appraisal of the Rock Scorpions (Scorpionidae: Hadogenes)

G. Newlands, A.C. Cantrell
Koedoe | Vol 28, No 1 | a533 | DOI: https://doi.org/10.4102/koedoe.v28i1.533 | © 1985 G. Newlands, A.C. Cantrell | This work is licensed under CC Attribution 4.0
Submitted: 28 November 1985 | Published: 28 November 1985

About the author(s)

G. Newlands, University of Pretoria, South Africa
A.C. Cantrell, National Centre for Occupational Health, South Africa

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Abstract

The morphological similarity between species of the rock scorpion genus Hadogenes has given rise to a great deal of controversy amongst taxonomists over the last eighty years. To resolve these difficulties, species of the genus were re-appraised in terms of their chromosome number and an electrophoretic analysis of venom proteins. The relationships arising from these data were integrated with morphological characteristics in order to get a more realistic appreciation of the genus. It emerges that the genus consists of 14 recognised species, some of which represent as yet unnamed species complexes. Taxonomic changes proposed are H. lawrencei sp. res., H. zuluanus stat. nov, H. gracilis fluvianus and H. gracilis namaquensis = H. phyllodes syn. n. A new key to the species is provided.

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1. Choose Your Weapon: Defensive Behavior Is Associated with Morphology and Performance in Scorpions
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