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Fig. 11 | Frontiers in Zoology

Fig. 11

From: Does the frontal sensory organ in adults of the hoplonemertean Quasitetrastemma stimpsoni originate from the larval apical organ?

Fig. 11

Distribution of larval types and frontal organs among major nemertean clades. Left: phylogenetic relationships among major nemertean clades (phylogeny modified after Andrade et al. [51] and Kvist et al. [52]). Red rectangles mark synapomorphies. Right: nemertean larvae (apical organs are marked with green) and heads of adult worms (hoplonemertean frontal organ is marked with green; heteronemertean frontal organ is marked with blue)

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