Fas. den. 
Hip. 
Fas.den. 
Sept. epen. 7 
ry 
SP 
Lat.vent. 
VS 
Olf. evag.—e, 
50 
Fig. 45 Section through the paraphyseal arch, showing a few postvelar 
tubules, the lateral choroid plexuses, and the foramen interventriculare. The 
cortical layers are not visible in the hippocampus, although they are well devel- 
oped in the neopallium. 
Fig. 46 Photograph from the same specimen as the last, through the depth 
of the hippocampal fissure. For plane of section see figure 18. A thin row of 
cells lies in the most medial part of the mantle zone of the hippocampus, fascia 
dentata. xX 14. 
150 
