THE RABBIT. 



367 



projects laterally outwards from the corresponding lateral 

 lobe, and fits into a deep pit in the cranial wall of the periotic 

 bone ( 56). 



479. The pons Varolii (p.va), a strong band of white 

 fibres running transversely across the anterior part of the 



ol.b 



m.o 



FIG. 70. Lepus cuniculus. The brain from beneath (nat. size). 



cb~, lateral lobe of cerebellum : c.h^, frontal, and cjr, temporal, lobe 

 of central hemisphere : c.ma, corpus mammillare : c.tz, corpus trape- 

 zoideum : fl, flocculus : m.o, medulla oblongata : o.ch, optic chiasma : 

 ol.b, olivary body : olf, olfactory lobe : o.tr, optic tract : pty, pituitary 

 body : p.va, pons Varolii : v.p, ventral pyramid : // XII, roots of 

 cerebral nerves : j/ 1 , first spinal nerve. 



ventral surface of the medulla oblongata immediately in 

 front of the ventral pyramids and corpora trapezoidea : it 

 ends in front in a forward! y curved margin, and is marked 



