PAPERS ON BIOLOGY AND AGRICULTURE 



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ly it is iii continuity with the median olfactory cortex 

 or hippocampus (hip.)- Borsally i Fig. 2) the two are 

 split apart by the wedgelike neopallium, which occupies 

 the dorsal surface of the hemisphere. Its lines of con- 

 tact with the two olfactory cortices are marked by two 



js.rh.- 



js.amg 



troll 

 ^fs. erh. 



Fig. 1. Lateral view of the cerebral hemisphere of Coenolestes obscurus. 

 as reconstructed from serial sections. 



Reference letters: amg.. amygdaloid complex; b. ol., olfactory bulb: fs. 

 amg.. amygdaloid fissure: fs. erh.. endorhinal fissure; fs. rh.. rhinal As- 

 sure: lob. p.. pyriform lobe: tr. ol. I., lateral olfactory tract: tub. ol.. 

 olfactory tubercle. 



Fig. 2. Dorsal view of the cerebral hemisphere of Coenolestes obscurus. as 



reconstructed from serial sections. 

 Reference letters: b. ol.. olfactory bulb; fs. rh.. rhinal fissure; lob. p., pyri- 

 form lobe. 



Ta 3 



Fig. 3. Ventral surface of the cerebral hemisphere of Bfl obscurus, 



- as reconstructed from serial sections. 



Reference letters : amg.. amygdaloid complex — dotted outline indicates 

 internal extent: b. ol.. olfactory bulb: fs. amg.. amygdaloid fissure: 

 fs. erh.. endorhinal fissure; fs. rh.. rhinal fissure: lob. p.. pyriform lobe: 

 neop.. neopallium; tr. ol. L, lateral olfactory tract; tub. ol., olfactory 

 tubercle. 



