1872.] MR. A. SANDERS ON LIOLEPIS BELLI. 181 



is inserted into the head of the second and into the metatarsal bone 

 of hallux. 



Fig. 16. 



Extensor muscles of the foot. 



Extensor brevis digitorum (fig. 16) is rather a complicated series 

 of small muscular slips on the dorsal surface of foot, the first of which 

 may be called extensor quinti digiti ; it arises fleshy from a hollow 

 depression on the cuboid ; it is conical in shape, and ends in a long 

 tendon, which is inserted into the terminal phalanx of the fifth digit. 



Abductor quarti digiti is the next, arising from the tibial edge of 

 the cuboid, and is inserted into the peroneal side of the base of the 

 first phalanx of the fourth digit. 



Extensor quarti digiti (fig. 16) consists of two separate portions. 

 The superficial section arises from the extreme anterior edge of the 

 peroneal side of the dorsal surface of the astragalo-calcaneum, in 

 immediate proximity to the articulation between this bone and the 

 cuboid, also from the whole length of the peroneal side of the meta- 

 tarsal bone of the fourth digit ; it terminates in three branches : one 

 joins the extensor of the third digit ; the other is inserted into the 

 tibial side of the base of the first phalanx of the fourth digit, while 



