no THE SALAMANDER 



Ileo-femoralis (Iliacus) Hoffmann (1873-8). 



Deducteur du femur (120)1 Perrin (1892). 



This is the deepest of the dorsal thigh muscles. It takes its origin 

 from the postero-lateral face of the ilium, and to some extent from 

 the dorsal (inner) face of the ischium also. It is inserted along the 

 middle portion of the posterior face of the femur. Low (1926) dis- 

 tinguishes the anterior from the posterior portion. 



Innervation : From N. extensorius. 



Function: It tends to draw the femur towards the tail and is there- 

 fore the opposer of the M. pub. isch. fem. int. 



3. Extensor Muscles of the Leg and Foot (PL VIII, fig. 47). 

 These should be dissected from the dorsal side. 



M. extensor digitorum communis (m.e.d.). Funk (1827); Ribbing 

 (1909). 



Longus digitorum extensor (40) .... Carus (1828). 



Peroneo-sus-digital. ...... Duges (1834). 



Extensor longus digitorum pedis . . . Rymer Jones (1852). 



Extensor hallucis longus, et Extensor quatuor digitorum longus 



Schmidt, Goddard, and van d. Hoeven (1864}. 

 Extensor longus digitorum . Mivart (1869); Humphry (1872). 



Femoro-digiti I-V ..... Hoffmann (1873-8). 



Extenseur des metatarsiens ..... Perrin (1892 a). 



Extenseur commun des doigts (76) .... Perrin (1892). 



Extensor digitorum longus ..... Osawa (1902). 



Femoro-metatarsalis ..... Sieglbaur (1904). 



Together with the following muscle = 



Extensor digitorum communis longus . . . Eisler (1895). 



This is the most superficial muscle on the extensor side of the leg. 

 It arises from the epicondylus lateralis femoris^ between the MM. 

 extensor cruris tibialis and fibularis, by means of a narrow tendon. 

 The muscle spreads out rapidly and becomes thin and fan-shaped. 

 At the bases of the digits it breaks up into nine small tendons, eight 

 of which are inserted on either side of the bases of the metatarsals of 

 the four post-axial digits, while the remaining one is inserted on the 

 fibular side of the first metatarsal. Sieglbaur denies the existence of 

 this ninth tendon, but it certainly exists in the majority of cases, if 

 not in all. There is a slight aponeurosis between the proximal por- 

 tion of this muscle and the M. extensor cruris fibularis. 



Innervation : By the NN. dorsales pedis, from N. peroneus. 



Function: It is the chief extensor of the foot. 



^ See also ' Criticism of Perrin', pp. 105-6. ■ 



