234 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Fig. 7. Drawn from the next section to fig. 6 (in the 

 plane of the dotted line 7 in fig. 1). Shows the 

 portion d, completely separated by a distinct 

 sheath, so that there is a group of three nerves, 

 cut transversely, united by connective tissue, viz., 

 a epipopdial nerve proper, c the branch from the 

 pedal nerve, and d the branch from a. 



Fig. 8. Drawn from the fourth section behind fig. 7 (in 

 the plane of the dotted line 8 in fig. 1). Shows 

 the three nerves a, d, and c still surrounded by 

 distinct sheaths, but the sheath between a and 

 c is not so well marked as in previous sections. 



Fig. 9. Drawn from the succeeding section to fig. 8 (in 

 the plane of the dotted line 9 in fig. 1) Shows 

 that the partition separating a and c has broken 

 down and the fibres of the two nerves are 

 invested in the same sheath. 



