Figure 6 in Neurobiology and vision of jumping spiders (Araneae: Salticidae)

Figure 6. Camera lucida drawings of 10 μm sections of the prosoma of a fifth instar Phidippus clarus. 1, Parasagittal section. Visual centers of the AME (AM1, AM2) lie at the top of the protocerebrum. Each corpus pedunculatus lies beneath the AME neuropiles, and forms compact synapses (glomeruli of the lame glomerulee) with the ipsilateral lateral eyes (ALE and PLE). A lateral esophageal dilator separates the cheliceral and pedipalpal ganglia on each side. The dorsal and ventral lobes of the central body are situated at the rear of the protocerebrum. Densely packed neuronal cell bodies are peripheral to the mass of the CNS. In this vertical section, only the dorsal and ventral extensions of layers I and II of the retina of the AME can be seen. 2, Sagittal (midsagittal) section. The rostral ganglion, situated above the anterior esophagus, sends the recurrent nerve to the rear just above the esophagus, and the rostral nerve to the front. Commissures of the respective segmental ganglia are separated by blood vessels, associated with tracheoles that originate with the opisomal tracheal spiracle. These tracheoles pass between the sucking stomach and the mass of fused segmental ganglia, then turn ventrally to penetrate that mass at the midline. After Hill (1975, 2006).