Fig. 5From: The head morphology of Pyrrhosoma nymphula larvae (Odonata: Zygoptera) focusing on functional aspects of the mouthpartsLabium and head capsule of Pyrrhosoma nymphula. a-d Three-dimensional visualisation from SRμCT data E-G. Sketch of the hypothetical function of the musculature – grey muscle-pictograms or parts of those indicates internal position within the respective mouthpart, grey additional outlines indicates membranous areas, lengths and broken lines are uninformative a. head capsule with labrum, fronto-lateral view b, e. Frontal view c, f. Lateral view d, g. Dorsal view. Abbreviations: c – caudal, d – dorsal, f – frontal, hc – head capsule, hy – hypopharynx, l – lateral, la – labium, v – ventralBack to article page