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Relationships between infracapitulum and coxa I by some uropodid mite families (Acari: Anactinotrichida)

Athias-Binche, F.


1977 - Volume: 19 Issue: 1 pages: 30-37


Keywords

Acari Anactinotrichida Appendages Thoracic limbs Coxa evolution functional significance

Abstract

Les relations de l infracapitulum et du coxa 1 chez quelques familles d uropodides (Acariens: anactinotriches). - By uropodid mites, the coxae I are coaptated to the infracapitular cylinder. This trend induces several morphological transformations of the joint. This evolutionary process has been studied in some uropodid taxa. A comparison with non uropodid Gamasida was given. Several types of coxal paraxial groove may be distinguished within the group. It can be assumed that this coxal evolution provides a better protection to the infracapitulum and a strong support to the extremely long chelicerae, especially among the higher uropodid mites.

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Article editorial history
Date published:
1977-09-30

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License
1977 Athias-Binche, F.
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