Zur Metamerie des Arthropoden-Kopfes: Das Acron.

Abstract

The paper emphasizes the great significance of the findings of developmental morphology and of the results of experimental morphology for the solution of the problems concerning the metamerism of the morphological structures in Arthropoda. In contrast, the bodily characteristics of the adult stages and the comparative morphological observations based on them are allowed to have the significance of auxiliary functions only. ...