MOTOR NUCLEI IN PHYLOGENY 539 
A. Silurus (en- 
Fig. 42 Reconstruction charts of motor roots and nuclei. 
larged from Van der Sprenkel, 92), B. Mormyrus (enlarged from Van der 
The charts A and B have been 
Sprenkel, 92), C. Lophius (after Kappers, 72). 
Signs and 
enlarged to the same scale as that used throughout this paper. 
* abbreviations as before (page 476). 
