CRANIAL NERVES OF SILURUS AND MORMYRUS 61 
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Fi itecias ar nortan (Oe te a eee ee ~---~s-8 
N Lak srost.a.m nee. 
Noat post. af. Vapi 
Fig. 19 At the level of the posterior lateralis root. Cereb., cerebellum; 
Cr.l., crista lobi lateralis; L. of c., double layer of large cells; M. of L., medulla 
of lobus lineae lateralis with granular cells; N.lat.post.a.f., fibers of nervus lateralis 
posterior ascending frontally (after bifuraction?); N.lat.post.a.m., fibers of nervus 
lateralis posterior ascending directly medially to the medulla of the lobus lineae 
lateralis; N.l.J., nucleus lineae lateralis; Jr.sp.c., tractus spino-cerebellaris; 
V spin., spinal V tract; X m., motor X root; X mot.nucl., cells of the motor X 
column; X s., sensory X root; X s.e., exit of sensory X root. 
