180 ANATOMY OF VERTEBRATES. 



branches to the gastrocnemius, and passes between the heads of 

 this and gives branches to the flexor of the toes, the tibialis 

 posticus and the flexor longus hallucis ; it then passes down the 

 leg on the inner side of the tendo Achillis, and receives the 

 branch from the long slender branch sent underneath this 

 tendon. It passes behind the inner condyle of the tibia, and 

 divides into the inner and outer plantar nerves : the inner 

 plantar gives a branch to the inner side of the second toe, and 

 then communicates with a branch of the deep plantar, and divides 

 for the outer side of the second and the inner side of the third ; 

 it also communicates with a branch of the deep plantar given to 

 the outer side of the third toe and the inner of the fourth ; the 

 outer plantar nerve passes between the flexor tendons, and sends 

 a nerve to the outer side of the foot and the last toe ; it gives off 

 the deep plantar, which passes underneath the short flexor of the 

 toes, and divides into branches, and gives filaments to each of the 

 small muscles situated in the sole of the foot, and a branch to 

 communicate with one from the inner plantar nerve : it then 

 divides for the outer side of the second toe (the innermost in the 

 Fox and most digitigrades) and the inner side of the third, and one 

 for the outer side of the third and the inner of the fourth, and 

 another for the outer side of the fourth and the inner of the fifth 

 toe. The peroneal nerve gives a small branch to the biceps and 

 filaments to the fascia near the knee ; it then divides the anterior 

 tibial nerve, sends off branches to the anterior tibial muscle, the 

 long extensor of the toes, and the long peroneal, and descends 

 with the anterior tibial artery, beneath the annular ligament, 

 and gives branches to the ligaments of the foot ; it passes on- 

 wards, and is joined by a branch from the continuation or dorsal 

 branch of the peroneal, and divides for the outer side of the 

 second and the inner side of the third toe. The continuation or 

 dorsal branch of the peroneal, gives branches to the short and 

 third peroneal muscles, and passes behind the long peroneal, and 

 emerges between this and the long extensor of the toes ; it passes 

 over the annular ligament, and sends a branch to the outer side 

 of the foot and the fifth toe ; on the back of the foot it sends the 

 branch to join the anterior tibial nerve ; it separates into two 

 branches, the first divides for the outer side of the third and the 

 inner side of the fourth toes, the other for the outer side of the 

 fourth and the inner side of the fifth or outermost toe. 



The chief characters of the minutely detailed distribution of 

 the myelonal nerves of Man, in works on his anatomy, are found 

 in most Quadrumana. Mr. Swan has remarked that the saphenus 



