122 THE SALAMANDER 



exception must be mentioned, however, namely, the entire absence in 

 the leg of any muscles corresponding with the M. flexor antibrachii 

 et carpi radialis, the M. flexor carpi ulnaris, and the M. flexor anti- 

 brachii ulnaris of the fore-arm. Doubtless correlated with this differ- 

 ence is the fibular origin, in the hind-limb, of the M. flex. prim, 

 comm. in addition to its femoral origin, since in the anterior limb this 

 muscle originates from the humerus alone. 



It is not possible in the present work to compare the muscles of 

 Salamandra with those of related groups or with the Mammalia, 

 since such a discussion must necessarily be lengthy, and moreover 

 is to be found in the works of Ribbing mentioned in the Bibliography. 



BIBLIOGRAPHY OF SECTION IV 



19, 96, 103, 106, 113, 114, 143, 144, 145, 146, 148, 160, 161, 162, 165, 

 168, 187, 206, 208, 256, 322, 333, 355, 432, 433, 434, 435, 440, 441, 454, 

 457^ 458, 459> 460, 461, 487, 517, 518, 519, 542, 565, 566, 567, 568, 570, 

 579, 618, 619, 620, 633, 634, 637, 645, 646, 647, 648, 664, 667, 698, 702, 

 705, 708, 720, 764, 794. 



